TY  - JOUR
AU  - Golubović, Aleksandar V.
AU  - Abramović, Biljana F.
AU  - Šćepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Armaković, Sanja J.
AU  - Veljkovic, I.
AU  - Babić, Biljana M.
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5421
AB  - The structural and morphological properties of mesoporous anatase nanopowders, synthesized by sol-gel method, have been modified by varying the duration of calcination, in order to obtain more efficient photocatalyst than Degussa P25 in the degradation of relatively large pollutant molecules ( GT 1 nm in size). According to X-ray diffraction analysis, the crystallite size was increased from 13 to 17.5 nm with the increase of calcination time from 1 to 7 h. The analysis of nitrogen sorption experimental data revealed that all samples were mesoporous, with a mean pore diameters in the range of similar to 5-9 nm. The corrugated pore structure model was employed to evaluate pore structure tortuosity. Nanopowder properties have been related to the photocatalytic activity, tested in the degradation of metoprolol tartrate salt, selective beta(1)-blocker used in a variety of cardiovascular diseases, with molecular size of 0.610 nm x 1.347 nm. The study has demonstrated that samples calcined for 4 and 5 h have displayed higher photocatalytic performance than Degussa P25, whereas the sample calcined for 3 h has shown comparable activity. (C) 2013 Published by Elsevier Ltd.
T2  - Materials Research Bulletin
T1  - Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol
VL  - 48
IS  - 4
SP  - 1363
EP  - 1371
DO  - 10.1016/j.materresbull.2012.11.098
ER  - 

@article{
author = "Golubović, Aleksandar V. and Abramović, Biljana F. and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Armaković, Sanja J. and Veljkovic, I. and Babić, Biljana M. and Dohcevic-Mitrovic, Z. and Popović, Zoran V.",
year = "2013",
abstract = "The structural and morphological properties of mesoporous anatase nanopowders, synthesized by sol-gel method, have been modified by varying the duration of calcination, in order to obtain more efficient photocatalyst than Degussa P25 in the degradation of relatively large pollutant molecules ( GT 1 nm in size). According to X-ray diffraction analysis, the crystallite size was increased from 13 to 17.5 nm with the increase of calcination time from 1 to 7 h. The analysis of nitrogen sorption experimental data revealed that all samples were mesoporous, with a mean pore diameters in the range of similar to 5-9 nm. The corrugated pore structure model was employed to evaluate pore structure tortuosity. Nanopowder properties have been related to the photocatalytic activity, tested in the degradation of metoprolol tartrate salt, selective beta(1)-blocker used in a variety of cardiovascular diseases, with molecular size of 0.610 nm x 1.347 nm. The study has demonstrated that samples calcined for 4 and 5 h have displayed higher photocatalytic performance than Degussa P25, whereas the sample calcined for 3 h has shown comparable activity. (C) 2013 Published by Elsevier Ltd.",
journal = "Materials Research Bulletin",
title = "Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol",
volume = "48",
number = "4",
pages = "1363-1371",
doi = "10.1016/j.materresbull.2012.11.098"
}

Golubović, A. V., Abramović, B. F., Šćepanović, M., Grujić-Brojčin, M., Armaković, S. J., Veljkovic, I., Babić, B. M., Dohcevic-Mitrovic, Z.,& Popović, Z. V.. (2013). Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol. in Materials Research Bulletin, 48(4), 1363-1371.
https://doi.org/10.1016/j.materresbull.2012.11.098

Golubović AV, Abramović BF, Šćepanović M, Grujić-Brojčin M, Armaković SJ, Veljkovic I, Babić BM, Dohcevic-Mitrovic Z, Popović ZV. Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol. in Materials Research Bulletin. 2013;48(4):1363-1371.
doi:10.1016/j.materresbull.2012.11.098 .

Golubović, Aleksandar V., Abramović, Biljana F., Šćepanović, Maja, Grujić-Brojčin, Mirjana, Armaković, Sanja J., Veljkovic, I., Babić, Biljana M., Dohcevic-Mitrovic, Z., Popović, Zoran V., "Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol" in Materials Research Bulletin, 48, no. 4 (2013):1363-1371,
https://doi.org/10.1016/j.materresbull.2012.11.098 . .

TY  - JOUR
AU  - Paunović, Novica M.
AU  - Dohčević-Mitrović, Zorana 
AU  - Scurtu, Rares
AU  - Aškrabić, Sonja
AU  - Prekajski, Marija D.
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4992
AB  - Ce1-xPrxO2-delta (0 LT = x LT = 0.4) nanocrystals were synthesized by self-propagating method and thoroughly characterized using X-ray diffraction, Raman and X-ray photoelectron spectroscopy and magnetic measurements. Undoped CeO2 nanocrystals exhibited intrinsic ferromagnetism at room temperature. Despite the increased concentration of oxygen vacancies in doped samples, our results showed that ferromagnetic ordering rapidly degrades with Pr doping. The suppression of ferromagnetism can be explained in terms of the different dopant valence state, the different nature of the vacancies formed in Pr-doped samples and their ability/disability to establish the ferromagnetic ordering.
T2  - Nanoscale
T1  - Suppression of inherent ferromagnetism in Pr-doped CeO2 nanocrystals
VL  - 4
IS  - 17
SP  - 5469
EP  - 5476
DO  - 10.1039/c2nr30799e
ER  - 

@article{
author = "Paunović, Novica M. and Dohčević-Mitrović, Zorana  and Scurtu, Rares and Aškrabić, Sonja and Prekajski, Marija D. and Matović, Branko and Popović, Zoran V.",
year = "2012",
abstract = "Ce1-xPrxO2-delta (0 LT = x LT = 0.4) nanocrystals were synthesized by self-propagating method and thoroughly characterized using X-ray diffraction, Raman and X-ray photoelectron spectroscopy and magnetic measurements. Undoped CeO2 nanocrystals exhibited intrinsic ferromagnetism at room temperature. Despite the increased concentration of oxygen vacancies in doped samples, our results showed that ferromagnetic ordering rapidly degrades with Pr doping. The suppression of ferromagnetism can be explained in terms of the different dopant valence state, the different nature of the vacancies formed in Pr-doped samples and their ability/disability to establish the ferromagnetic ordering.",
journal = "Nanoscale",
title = "Suppression of inherent ferromagnetism in Pr-doped CeO2 nanocrystals",
volume = "4",
number = "17",
pages = "5469-5476",
doi = "10.1039/c2nr30799e"
}

Paunović, N. M., Dohčević-Mitrović, Z., Scurtu, R., Aškrabić, S., Prekajski, M. D., Matović, B.,& Popović, Z. V.. (2012). Suppression of inherent ferromagnetism in Pr-doped CeO2 nanocrystals. in Nanoscale, 4(17), 5469-5476.
https://doi.org/10.1039/c2nr30799e

Paunović NM, Dohčević-Mitrović Z, Scurtu R, Aškrabić S, Prekajski MD, Matović B, Popović ZV. Suppression of inherent ferromagnetism in Pr-doped CeO2 nanocrystals. in Nanoscale. 2012;4(17):5469-5476.
doi:10.1039/c2nr30799e .

Paunović, Novica M., Dohčević-Mitrović, Zorana , Scurtu, Rares, Aškrabić, Sonja, Prekajski, Marija D., Matović, Branko, Popović, Zoran V., "Suppression of inherent ferromagnetism in Pr-doped CeO2 nanocrystals" in Nanoscale, 4, no. 17 (2012):5469-5476,
https://doi.org/10.1039/c2nr30799e . .

TY  - JOUR
AU  - Askrabic, S.
AU  - Dohcevic-Mitrovic, Z.
AU  - Kremenović, Aleksandar S.
AU  - Lazarević, Nataša
AU  - Kahlenberg, V.
AU  - Popović, Zoran V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4661
AB  - Nanocrystalline ceria (CeO2) is known for its ionic conductivity and oxygen storage properties, which depend on the presence of oxygen ion vacancies. The vacancies cause several important changes in CeO2 involving microstrain, electronic structure, magnetic properties, etc. In this article, we focus our attention to the microstructural changes of nanocrystalline CeO2-x annealed at different temperatures in the range 200500 degrees C. Structural and vibrational properties were investigated by X-ray diffraction and Raman spectroscopy. It was observed that the content of oxygen vacancies changed significantly with increasing annealing temperature, which plays an important role in the observed microstructural changes of the annealed samples. We demonstrate that the observed microstrain changes, because of variable defect content, dominate over the crystallite size effect. This finding is opposite to the conclusions made by several other authors. A new mode, classified as a probable surface mode, was observed in the Raman spectra at similar to 480 cm(1), the appearance of which can be explained by the large defective structure and disorder in the ceria lattice. Copyright (c) 2011 John Wiley and Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals
VL  - 43
IS  - 1
SP  - 76
EP  - 81
DO  - 10.1002/jrs.2987
ER  - 

@article{
author = "Askrabic, S. and Dohcevic-Mitrovic, Z. and Kremenović, Aleksandar S. and Lazarević, Nataša and Kahlenberg, V. and Popović, Zoran V.",
year = "2012",
abstract = "Nanocrystalline ceria (CeO2) is known for its ionic conductivity and oxygen storage properties, which depend on the presence of oxygen ion vacancies. The vacancies cause several important changes in CeO2 involving microstrain, electronic structure, magnetic properties, etc. In this article, we focus our attention to the microstructural changes of nanocrystalline CeO2-x annealed at different temperatures in the range 200500 degrees C. Structural and vibrational properties were investigated by X-ray diffraction and Raman spectroscopy. It was observed that the content of oxygen vacancies changed significantly with increasing annealing temperature, which plays an important role in the observed microstructural changes of the annealed samples. We demonstrate that the observed microstrain changes, because of variable defect content, dominate over the crystallite size effect. This finding is opposite to the conclusions made by several other authors. A new mode, classified as a probable surface mode, was observed in the Raman spectra at similar to 480 cm(1), the appearance of which can be explained by the large defective structure and disorder in the ceria lattice. Copyright (c) 2011 John Wiley and Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals",
volume = "43",
number = "1",
pages = "76-81",
doi = "10.1002/jrs.2987"
}

Askrabic, S., Dohcevic-Mitrovic, Z., Kremenović, A. S., Lazarević, N., Kahlenberg, V.,& Popović, Z. V.. (2012). Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals. in Journal of Raman Spectroscopy, 43(1), 76-81.
https://doi.org/10.1002/jrs.2987

Askrabic S, Dohcevic-Mitrovic Z, Kremenović AS, Lazarević N, Kahlenberg V, Popović ZV. Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals. in Journal of Raman Spectroscopy. 2012;43(1):76-81.
doi:10.1002/jrs.2987 .

Askrabic, S., Dohcevic-Mitrovic, Z., Kremenović, Aleksandar S., Lazarević, Nataša, Kahlenberg, V., Popović, Zoran V., "Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals" in Journal of Raman Spectroscopy, 43, no. 1 (2012):76-81,
https://doi.org/10.1002/jrs.2987 . .

TY  - JOUR
AU  - Šćepanović, Maja
AU  - Abramović, Biljana F.
AU  - Golubović, Aleksandar V.
AU  - Kler, Sanja
AU  - Grujić-Brojčin, Mirjana
AU  - Dohčević-Mitrović, Zorana 
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4656
AB  - Nanocrystalline titanium dioxide (TiO2) powders have been synthesized by sol-gel method using titanium tetrachloride (TiCl4) or tetrabutyl titanate (Ti(OC4H9)(4) as precursors, different alcohols and calcination temperatures in the range from 400 to 650 A degrees C. The photocatalytic activity of as-prepared powders has been tested for the degradation of metoprolol tartrate salt, a selective beta-blocker used to treat a variety of cardiovascular diseases, and compared to photocatalytic activity obtained from Degussa P25. Nanosized TiO2 powders prepared from TiCl4 and amyl-alcohol, calcined at 550 A degrees C, displayed an activity comparable to Degussa P25, whereas the sample from the same series, calcined at 650 A degrees C, showed higher photocatalytic activity in the whole range of the catalyst loading. Structural, morphological and surface properties of synthesized TiO2 nanopowders have been investigated by XRD, SEM, EDS and BET measurements, as well as FTIR and Raman spectroscopy, in order to find out the material properties which enable rapid an efficient decomposition of metoprolol under UV radiation.
T2  - Journal of Sol-gel Science and Technology
T1  - Photocatalytic degradation of metoprolol in water suspension of TiO2 nanopowders prepared using sol-gel route
VL  - 61
IS  - 2
SP  - 390
EP  - 402
DO  - 10.1007/s10971-011-2639-9
ER  - 

@article{
author = "Šćepanović, Maja and Abramović, Biljana F. and Golubović, Aleksandar V. and Kler, Sanja and Grujić-Brojčin, Mirjana and Dohčević-Mitrović, Zorana  and Babić, Biljana M. and Matović, Branko and Popović, Zoran V.",
year = "2012",
abstract = "Nanocrystalline titanium dioxide (TiO2) powders have been synthesized by sol-gel method using titanium tetrachloride (TiCl4) or tetrabutyl titanate (Ti(OC4H9)(4) as precursors, different alcohols and calcination temperatures in the range from 400 to 650 A degrees C. The photocatalytic activity of as-prepared powders has been tested for the degradation of metoprolol tartrate salt, a selective beta-blocker used to treat a variety of cardiovascular diseases, and compared to photocatalytic activity obtained from Degussa P25. Nanosized TiO2 powders prepared from TiCl4 and amyl-alcohol, calcined at 550 A degrees C, displayed an activity comparable to Degussa P25, whereas the sample from the same series, calcined at 650 A degrees C, showed higher photocatalytic activity in the whole range of the catalyst loading. Structural, morphological and surface properties of synthesized TiO2 nanopowders have been investigated by XRD, SEM, EDS and BET measurements, as well as FTIR and Raman spectroscopy, in order to find out the material properties which enable rapid an efficient decomposition of metoprolol under UV radiation.",
journal = "Journal of Sol-gel Science and Technology",
title = "Photocatalytic degradation of metoprolol in water suspension of TiO2 nanopowders prepared using sol-gel route",
volume = "61",
number = "2",
pages = "390-402",
doi = "10.1007/s10971-011-2639-9"
}

Šćepanović, M., Abramović, B. F., Golubović, A. V., Kler, S., Grujić-Brojčin, M., Dohčević-Mitrović, Z., Babić, B. M., Matović, B.,& Popović, Z. V.. (2012). Photocatalytic degradation of metoprolol in water suspension of TiO2 nanopowders prepared using sol-gel route. in Journal of Sol-gel Science and Technology, 61(2), 390-402.
https://doi.org/10.1007/s10971-011-2639-9

Šćepanović M, Abramović BF, Golubović AV, Kler S, Grujić-Brojčin M, Dohčević-Mitrović Z, Babić BM, Matović B, Popović ZV. Photocatalytic degradation of metoprolol in water suspension of TiO2 nanopowders prepared using sol-gel route. in Journal of Sol-gel Science and Technology. 2012;61(2):390-402.
doi:10.1007/s10971-011-2639-9 .

Šćepanović, Maja, Abramović, Biljana F., Golubović, Aleksandar V., Kler, Sanja, Grujić-Brojčin, Mirjana, Dohčević-Mitrović, Zorana , Babić, Biljana M., Matović, Branko, Popović, Zoran V., "Photocatalytic degradation of metoprolol in water suspension of TiO2 nanopowders prepared using sol-gel route" in Journal of Sol-gel Science and Technology, 61, no. 2 (2012):390-402,
https://doi.org/10.1007/s10971-011-2639-9 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Bučevac, Dušan
AU  - Rosić, Milena
AU  - Babić, Biljana M.
AU  - Dohcevic-Mitrovic, Z. D.
AU  - Radović, Marko B.
AU  - Popović, Zoran V.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4544
AB  - Nanopowdered solid solution Ce(1-x)Cu(x)O(2-gamma) samples (0 LT = x LT = 0.15) were synthesized by self-propagating room temperature synthesis (SPRT). Raman spectroscopy and XRD at room temperature were used to study the vibration properties of these materials as well as the Cu solubility in ceria lattice. The solubility limit of Cu(2+) in CeO(2) lattice was found to be lower than published in the literature. Results show that obtained powders with low dopant concentration are solid solutions with a fluorite-type crystal structure. However, with Cu content higher than 7.5 mass%, the phase separation was observed and two oxide phases, CeO(2) and CuO, coexist. All powders were nanometric in size with high specific surface area. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Synthesis and characterization of Cu-doped ceria nanopowders
VL  - 37
IS  - 8
SP  - 3161
EP  - 3165
DO  - 10.1016/j.ceramint.2011.03.078
ER  - 

@article{
author = "Matović, Branko and Bučevac, Dušan and Rosić, Milena and Babić, Biljana M. and Dohcevic-Mitrovic, Z. D. and Radović, Marko B. and Popović, Zoran V.",
year = "2011",
abstract = "Nanopowdered solid solution Ce(1-x)Cu(x)O(2-gamma) samples (0 LT = x LT = 0.15) were synthesized by self-propagating room temperature synthesis (SPRT). Raman spectroscopy and XRD at room temperature were used to study the vibration properties of these materials as well as the Cu solubility in ceria lattice. The solubility limit of Cu(2+) in CeO(2) lattice was found to be lower than published in the literature. Results show that obtained powders with low dopant concentration are solid solutions with a fluorite-type crystal structure. However, with Cu content higher than 7.5 mass%, the phase separation was observed and two oxide phases, CeO(2) and CuO, coexist. All powders were nanometric in size with high specific surface area. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Synthesis and characterization of Cu-doped ceria nanopowders",
volume = "37",
number = "8",
pages = "3161-3165",
doi = "10.1016/j.ceramint.2011.03.078"
}

Matović, B., Bučevac, D., Rosić, M., Babić, B. M., Dohcevic-Mitrovic, Z. D., Radović, M. B.,& Popović, Z. V.. (2011). Synthesis and characterization of Cu-doped ceria nanopowders. in Ceramics International, 37(8), 3161-3165.
https://doi.org/10.1016/j.ceramint.2011.03.078

Matović B, Bučevac D, Rosić M, Babić BM, Dohcevic-Mitrovic ZD, Radović MB, Popović ZV. Synthesis and characterization of Cu-doped ceria nanopowders. in Ceramics International. 2011;37(8):3161-3165.
doi:10.1016/j.ceramint.2011.03.078 .

Matović, Branko, Bučevac, Dušan, Rosić, Milena, Babić, Biljana M., Dohcevic-Mitrovic, Z. D., Radović, Marko B., Popović, Zoran V., "Synthesis and characterization of Cu-doped ceria nanopowders" in Ceramics International, 37, no. 8 (2011):3161-3165,
https://doi.org/10.1016/j.ceramint.2011.03.078 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, Z.
AU  - Golubović, Aleksandar V.
AU  - Radović, Marko B.
AU  - Fruth, V.
AU  - Kremenović, Aleksandar S.
AU  - Meden, A.
AU  - Babić, Biljana M.
AU  - Šćepanović, Maja
AU  - Popović, Zoran V.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4421
AB  - Ultrafine porous cerium dioxide nanopowders were synthesized by relatively new and cost-effective hydrothermal method varying the main synthesis parameters, temperature of calcination and type of basic solution. Characterization of the as-produced powders was performed by X-ray diffraction (XRD), atomic force microscopy (AFM), Raman scattering and Brunauer-Emmett-Teller (BET) method. This study reveals that difference in synthesis parameters has strong influence on the particle size, surface area, and pore size distribution enabling the more precise control of material properties very important for catalytic and nanosensor applications. (C) 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim
T2  - Physica Status Solidi. A: Applications and Materials Science
T1  - Mesoporous CeO2 nanopowders with different particle sizes
VL  - 208
IS  - 6
SP  - 1399
EP  - 1402
DO  - 10.1002/pssa.201000355
ER  - 

@article{
author = "Dohcevic-Mitrovic, Z. and Golubović, Aleksandar V. and Radović, Marko B. and Fruth, V. and Kremenović, Aleksandar S. and Meden, A. and Babić, Biljana M. and Šćepanović, Maja and Popović, Zoran V.",
year = "2011",
abstract = "Ultrafine porous cerium dioxide nanopowders were synthesized by relatively new and cost-effective hydrothermal method varying the main synthesis parameters, temperature of calcination and type of basic solution. Characterization of the as-produced powders was performed by X-ray diffraction (XRD), atomic force microscopy (AFM), Raman scattering and Brunauer-Emmett-Teller (BET) method. This study reveals that difference in synthesis parameters has strong influence on the particle size, surface area, and pore size distribution enabling the more precise control of material properties very important for catalytic and nanosensor applications. (C) 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim",
journal = "Physica Status Solidi. A: Applications and Materials Science",
title = "Mesoporous CeO2 nanopowders with different particle sizes",
volume = "208",
number = "6",
pages = "1399-1402",
doi = "10.1002/pssa.201000355"
}

Dohcevic-Mitrovic, Z., Golubović, A. V., Radović, M. B., Fruth, V., Kremenović, A. S., Meden, A., Babić, B. M., Šćepanović, M.,& Popović, Z. V.. (2011). Mesoporous CeO2 nanopowders with different particle sizes. in Physica Status Solidi. A: Applications and Materials Science, 208(6), 1399-1402.
https://doi.org/10.1002/pssa.201000355

Dohcevic-Mitrovic Z, Golubović AV, Radović MB, Fruth V, Kremenović AS, Meden A, Babić BM, Šćepanović M, Popović ZV. Mesoporous CeO2 nanopowders with different particle sizes. in Physica Status Solidi. A: Applications and Materials Science. 2011;208(6):1399-1402.
doi:10.1002/pssa.201000355 .

Dohcevic-Mitrovic, Z., Golubović, Aleksandar V., Radović, Marko B., Fruth, V., Kremenović, Aleksandar S., Meden, A., Babić, Biljana M., Šćepanović, Maja, Popović, Zoran V., "Mesoporous CeO2 nanopowders with different particle sizes" in Physica Status Solidi. A: Applications and Materials Science, 208, no. 6 (2011):1399-1402,
https://doi.org/10.1002/pssa.201000355 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, Z. D.
AU  - Paunović, Novica M.
AU  - Radović, Marko B.
AU  - Popović, Zoran V.
AU  - Matović, Branko
AU  - Cekić, Božidar Đ.
AU  - Ivanovski, Valentin N.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4007
AB  - Room-temperature ferromagnetism was observed in undoped and Fe(2+(3+))-doped CeO(2) nanocrystals. In Fe-doped samples the enhancement of ferromagnetic ordering occurs by changing the valence state of Fe ions, whereas Raman spectra demonstrated strong electron-molecular vibrational coupling and increase in oxygen vacancy concentration. Air annealing showed degradation of ferromagnetic ordering and appearance of hematite phase in Fe(3+)-doped sample. The observed ferromagnetic coupling in Fe-doped samples, associated with the presence of magnetic ions mediated by single charged O(2-) vacancies, demonstrated that valence state of dopant has a strong influence on magnetic properties of CeO(2) nanoparticles. (C) American Institute of Physics. [doi: 10.1063/1.3431581]
T2  - Applied Physics Letters
T1  - Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals
VL  - 96
IS  - 20
DO  - 10.1063/1.3431581
ER  - 

@article{
author = "Dohcevic-Mitrovic, Z. D. and Paunović, Novica M. and Radović, Marko B. and Popović, Zoran V. and Matović, Branko and Cekić, Božidar Đ. and Ivanovski, Valentin N.",
year = "2010",
abstract = "Room-temperature ferromagnetism was observed in undoped and Fe(2+(3+))-doped CeO(2) nanocrystals. In Fe-doped samples the enhancement of ferromagnetic ordering occurs by changing the valence state of Fe ions, whereas Raman spectra demonstrated strong electron-molecular vibrational coupling and increase in oxygen vacancy concentration. Air annealing showed degradation of ferromagnetic ordering and appearance of hematite phase in Fe(3+)-doped sample. The observed ferromagnetic coupling in Fe-doped samples, associated with the presence of magnetic ions mediated by single charged O(2-) vacancies, demonstrated that valence state of dopant has a strong influence on magnetic properties of CeO(2) nanoparticles. (C) American Institute of Physics. [doi: 10.1063/1.3431581]",
journal = "Applied Physics Letters",
title = "Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals",
volume = "96",
number = "20",
doi = "10.1063/1.3431581"
}

Dohcevic-Mitrovic, Z. D., Paunović, N. M., Radović, M. B., Popović, Z. V., Matović, B., Cekić, B. Đ.,& Ivanovski, V. N.. (2010). Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals. in Applied Physics Letters, 96(20).
https://doi.org/10.1063/1.3431581

Dohcevic-Mitrovic ZD, Paunović NM, Radović MB, Popović ZV, Matović B, Cekić BĐ, Ivanovski VN. Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals. in Applied Physics Letters. 2010;96(20).
doi:10.1063/1.3431581 .

Dohcevic-Mitrovic, Z. D., Paunović, Novica M., Radović, Marko B., Popović, Zoran V., Matović, Branko, Cekić, Božidar Đ., Ivanovski, Valentin N., "Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals" in Applied Physics Letters, 96, no. 20 (2010),
https://doi.org/10.1063/1.3431581 . .

TY  - JOUR
AU  - Šćepanović, Maja
AU  - Askrabic, S.
AU  - Grujić-Brojčin, Mirjana
AU  - Golubović, Aleksandar V.
AU  - Dohcevic-Mitrovic, Z.
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6863
AB  - Pure titania (TiO(2)) nanopowders and TiO(2) doped with 10 mol % of vanadium ions (V(3+)) are synthesized by sol-gel method. The dependence of structural characteristics of nanopowders on synthesis conditions is investigated by X-ray diffraction and Raman spectroscopy. Very intensive modes observed in Raman spectra of all nanopowders are assigned to anatase phase of TiO(2). Additional Raman modes of extremely low intensity which can be related to the presence of small
T2  - International Journal of Modern Physics B
T1  - Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method
VL  - 24
IS  - 6-7
SP  - 667
EP  - 675
DO  - 10.1142/S0217979210064289
ER  - 

@article{
author = "Šćepanović, Maja and Askrabic, S. and Grujić-Brojčin, Mirjana and Golubović, Aleksandar V. and Dohcevic-Mitrovic, Z. and Matović, Branko and Popović, Zoran V.",
year = "2010",
abstract = "Pure titania (TiO(2)) nanopowders and TiO(2) doped with 10 mol % of vanadium ions (V(3+)) are synthesized by sol-gel method. The dependence of structural characteristics of nanopowders on synthesis conditions is investigated by X-ray diffraction and Raman spectroscopy. Very intensive modes observed in Raman spectra of all nanopowders are assigned to anatase phase of TiO(2). Additional Raman modes of extremely low intensity which can be related to the presence of small",
journal = "International Journal of Modern Physics B",
title = "Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method",
volume = "24",
number = "6-7",
pages = "667-675",
doi = "10.1142/S0217979210064289"
}

Šćepanović, M., Askrabic, S., Grujić-Brojčin, M., Golubović, A. V., Dohcevic-Mitrovic, Z., Matović, B.,& Popović, Z. V.. (2010). Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method. in International Journal of Modern Physics B, 24(6-7), 667-675.
https://doi.org/10.1142/S0217979210064289

Šćepanović M, Askrabic S, Grujić-Brojčin M, Golubović AV, Dohcevic-Mitrovic Z, Matović B, Popović ZV. Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method. in International Journal of Modern Physics B. 2010;24(6-7):667-675.
doi:10.1142/S0217979210064289 .

Šćepanović, Maja, Askrabic, S., Grujić-Brojčin, Mirjana, Golubović, Aleksandar V., Dohcevic-Mitrovic, Z., Matović, Branko, Popović, Zoran V., "Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method" in International Journal of Modern Physics B, 24, no. 6-7 (2010):667-675,
https://doi.org/10.1142/S0217979210064289 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Logar, Mihovil
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4089
AB  - In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Synthesis and characterization of the nanometric Pr-doped ceria
VL  - 505
IS  - 1
SP  - 235
EP  - 238
DO  - 10.1016/j.jallcom.2010.06.036
ER  - 

@article{
author = "Matović, Branko and Bošković, Snežana B. and Logar, Mihovil and Radović, Marko B. and Dohcevic-Mitrovic, Z. and Popović, Zoran V. and Aldinger, Fritz",
year = "2010",
abstract = "In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Synthesis and characterization of the nanometric Pr-doped ceria",
volume = "505",
number = "1",
pages = "235-238",
doi = "10.1016/j.jallcom.2010.06.036"
}

Matović, B., Bošković, S. B., Logar, M., Radović, M. B., Dohcevic-Mitrovic, Z., Popović, Z. V.,& Aldinger, F.. (2010). Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds, 505(1), 235-238.
https://doi.org/10.1016/j.jallcom.2010.06.036

Matović B, Bošković SB, Logar M, Radović MB, Dohcevic-Mitrovic Z, Popović ZV, Aldinger F. Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds. 2010;505(1):235-238.
doi:10.1016/j.jallcom.2010.06.036 .

Matović, Branko, Bošković, Snežana B., Logar, Mihovil, Radović, Marko B., Dohcevic-Mitrovic, Z., Popović, Zoran V., Aldinger, Fritz, "Synthesis and characterization of the nanometric Pr-doped ceria" in Journal of Alloys and Compounds, 505, no. 1 (2010):235-238,
https://doi.org/10.1016/j.jallcom.2010.06.036 . .

TY  - JOUR
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Paunović, Novica M.
AU  - Šćepanović, Maja
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6835
AB  - We have measured the Raman scattering and magnetization of pure and Fe2+(Fe3+) doped CeO2 nanopowders at room temperature. The Raman scattering spectra revealed the existence of CeO2 fluorite cubic structure for all investigated samples. The Raman active mode at about 600 cm(-1), seen in all samples, can be ascribed to the CeO2 intrinsic oxygen vacancies. Additional Raman modes at 720 cm(-1), 1320 cm(-1) and 1600 cm(-1), which appear in the spectra of doped samples, can be assigned to maghemite (gamma-Fe2O3) cation deficient structure, to 2 omega(LO) IR-allowed overtone and two magnon structure, respectively. This implies that our powders are composed of mixed valence states and have defective structure. Presence of oxygen defect states and magnetic ions can be responsible for the observed ferromagnetism at room temperature in both pure and Fe doped samples.
T2  - Acta Physica Polonica A
T1  - Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals
VL  - 116
IS  - 1
SP  - 84
EP  - 87
DO  - 10.12693/APhysPolA.116.84
ER  - 

@article{
author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. and Paunović, Novica M. and Šćepanović, Maja and Matović, Branko and Popović, Zoran V.",
year = "2009",
abstract = "We have measured the Raman scattering and magnetization of pure and Fe2+(Fe3+) doped CeO2 nanopowders at room temperature. The Raman scattering spectra revealed the existence of CeO2 fluorite cubic structure for all investigated samples. The Raman active mode at about 600 cm(-1), seen in all samples, can be ascribed to the CeO2 intrinsic oxygen vacancies. Additional Raman modes at 720 cm(-1), 1320 cm(-1) and 1600 cm(-1), which appear in the spectra of doped samples, can be assigned to maghemite (gamma-Fe2O3) cation deficient structure, to 2 omega(LO) IR-allowed overtone and two magnon structure, respectively. This implies that our powders are composed of mixed valence states and have defective structure. Presence of oxygen defect states and magnetic ions can be responsible for the observed ferromagnetism at room temperature in both pure and Fe doped samples.",
journal = "Acta Physica Polonica A",
title = "Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals",
volume = "116",
number = "1",
pages = "84-87",
doi = "10.12693/APhysPolA.116.84"
}

Radović, M. B., Dohcevic-Mitrovic, Z., Paunović, N. M., Šćepanović, M., Matović, B.,& Popović, Z. V.. (2009). Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals. in Acta Physica Polonica A, 116(1), 84-87.
https://doi.org/10.12693/APhysPolA.116.84

Radović MB, Dohcevic-Mitrovic Z, Paunović NM, Šćepanović M, Matović B, Popović ZV. Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals. in Acta Physica Polonica A. 2009;116(1):84-87.
doi:10.12693/APhysPolA.116.84 .

Radović, Marko B., Dohcevic-Mitrovic, Z., Paunović, Novica M., Šćepanović, Maja, Matović, Branko, Popović, Zoran V., "Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals" in Acta Physica Polonica A, 116, no. 1 (2009):84-87,
https://doi.org/10.12693/APhysPolA.116.84 . .

TY  - JOUR
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z. D.
AU  - Golubović, Aleksandar V.
AU  - Matović, Branko
AU  - Šćepanović, Maja
AU  - Popović, Zoran V.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6845
AB  - Pure and 10 mol% Fe3+ doped CeO2 nanocrystals were synthesized by hydrothermal method using two different basic solutions (NH4OH and NaOH). All the samples were calcinated at 140 degrees C and 200 degrees C. The characterization of crystalline structure, vibrational and optical properties was performed using X-ray diffraction, Raman spectroscopy and spectroscopic ellipsometry. The obtained results showed that the Fe-doped samples are solid solutions with different size of nanocrystals, very dependent on the synthesis temperature and type of basic solution. The Raman measurements demonstrated electron molecular vibrational coupling and increase of oxygen vacancy concentration whereas doping provokes a small decrease of optical absorption edge in comparison with pure ceria.
T2  - Acta Physica Polonica A
T1  - Hydrothermal Synthesis of CeO2 and Ce0.9Fe0.1O2 Nanocrystals
VL  - 116
IS  - 4
SP  - 614
EP  - 617
DO  - 10.12693/APhysPolA.116.614
ER  - 

@article{
author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. D. and Golubović, Aleksandar V. and Matović, Branko and Šćepanović, Maja and Popović, Zoran V.",
year = "2009",
abstract = "Pure and 10 mol% Fe3+ doped CeO2 nanocrystals were synthesized by hydrothermal method using two different basic solutions (NH4OH and NaOH). All the samples were calcinated at 140 degrees C and 200 degrees C. The characterization of crystalline structure, vibrational and optical properties was performed using X-ray diffraction, Raman spectroscopy and spectroscopic ellipsometry. The obtained results showed that the Fe-doped samples are solid solutions with different size of nanocrystals, very dependent on the synthesis temperature and type of basic solution. The Raman measurements demonstrated electron molecular vibrational coupling and increase of oxygen vacancy concentration whereas doping provokes a small decrease of optical absorption edge in comparison with pure ceria.",
journal = "Acta Physica Polonica A",
title = "Hydrothermal Synthesis of CeO2 and Ce0.9Fe0.1O2 Nanocrystals",
volume = "116",
number = "4",
pages = "614-617",
doi = "10.12693/APhysPolA.116.614"
}

Radović, M. B., Dohcevic-Mitrovic, Z. D., Golubović, A. V., Matović, B., Šćepanović, M.,& Popović, Z. V.. (2009). Hydrothermal Synthesis of CeO2 and Ce0.9Fe0.1O2 Nanocrystals. in Acta Physica Polonica A, 116(4), 614-617.
https://doi.org/10.12693/APhysPolA.116.614

Radović MB, Dohcevic-Mitrovic ZD, Golubović AV, Matović B, Šćepanović M, Popović ZV. Hydrothermal Synthesis of CeO2 and Ce0.9Fe0.1O2 Nanocrystals. in Acta Physica Polonica A. 2009;116(4):614-617.
doi:10.12693/APhysPolA.116.614 .

Radović, Marko B., Dohcevic-Mitrovic, Z. D., Golubović, Aleksandar V., Matović, Branko, Šćepanović, Maja, Popović, Zoran V., "Hydrothermal Synthesis of CeO2 and Ce0.9Fe0.1O2 Nanocrystals" in Acta Physica Polonica A, 116, no. 4 (2009):614-617,
https://doi.org/10.12693/APhysPolA.116.614 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Dohcevic-Mitrovic, Z.
AU  - Radović, Marko B.
AU  - Brankovic, Z.
AU  - Branković, Goran O.
AU  - Bošković, Snežana B.
AU  - Popović, Zoran V.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3732
AB  - Nanopowdered solid solution Ce(1-x)Fe(x)O(2-delta) samples (0 LT = x LT = 0.1) were synthesized by a self-propagating room temperature synthesis (SPRT). XRD and Raman spectroscopy at room temperature were used to study the vibrational properties of these materials as well as the Fe solubility in ceria lattice. Results show that all obtained powders are solid solutions with a fluorite-type crystal structure and all powders were nanometric in size. The average size of Ce(1-x)Fe(x)O(2-delta) particles lies about 5 nm. The results of electrical properties of the sintered samples investigated by an ac impedance spectroscopy are also presented and discussed. It was confirmed that Fe(3+) doped ceria material has a potential as electrolyte for intermediate-temperature solid oxide fuel cell applications. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Synthesis and characterization of ceria based nanometric powders
VL  - 193
IS  - 1
SP  - 146
EP  - 149
DO  - 10.1016/j.jpowsour.2009.03.053
ER  - 

@article{
author = "Matović, Branko and Dohcevic-Mitrovic, Z. and Radović, Marko B. and Brankovic, Z. and Branković, Goran O. and Bošković, Snežana B. and Popović, Zoran V.",
year = "2009",
abstract = "Nanopowdered solid solution Ce(1-x)Fe(x)O(2-delta) samples (0 LT = x LT = 0.1) were synthesized by a self-propagating room temperature synthesis (SPRT). XRD and Raman spectroscopy at room temperature were used to study the vibrational properties of these materials as well as the Fe solubility in ceria lattice. Results show that all obtained powders are solid solutions with a fluorite-type crystal structure and all powders were nanometric in size. The average size of Ce(1-x)Fe(x)O(2-delta) particles lies about 5 nm. The results of electrical properties of the sintered samples investigated by an ac impedance spectroscopy are also presented and discussed. It was confirmed that Fe(3+) doped ceria material has a potential as electrolyte for intermediate-temperature solid oxide fuel cell applications. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Synthesis and characterization of ceria based nanometric powders",
volume = "193",
number = "1",
pages = "146-149",
doi = "10.1016/j.jpowsour.2009.03.053"
}

Matović, B., Dohcevic-Mitrovic, Z., Radović, M. B., Brankovic, Z., Branković, G. O., Bošković, S. B.,& Popović, Z. V.. (2009). Synthesis and characterization of ceria based nanometric powders. in Journal of Power Sources, 193(1), 146-149.
https://doi.org/10.1016/j.jpowsour.2009.03.053

Matović B, Dohcevic-Mitrovic Z, Radović MB, Brankovic Z, Branković GO, Bošković SB, Popović ZV. Synthesis and characterization of ceria based nanometric powders. in Journal of Power Sources. 2009;193(1):146-149.
doi:10.1016/j.jpowsour.2009.03.053 .

Matović, Branko, Dohcevic-Mitrovic, Z., Radović, Marko B., Brankovic, Z., Branković, Goran O., Bošković, Snežana B., Popović, Zoran V., "Synthesis and characterization of ceria based nanometric powders" in Journal of Power Sources, 193, no. 1 (2009):146-149,
https://doi.org/10.1016/j.jpowsour.2009.03.053 . .

TY  - JOUR
AU  - Đokić, Dejan M.
AU  - Popović, Zoran V.
AU  - Vukajlović, Filip R.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3357
AB  - The effects of spin-phonon interaction and magnetic anisotropy on the temperature dependence of the infrared optical phonon modes in the antiferromagnetic alpha-MnSe are investigated by use of Greens function formalism within 1/z perturbation framework. The renormalization effects are calculated explicitly as a function of temperature, phonon-phonon, and spin-phonon interaction constants. Temperature dependence of the renormalized LO phonon frequencies of the F(1u) infrared active and combinational phonon modes are calculated and compared with experimental data. We have shown that the inclusion of anisotropy is necessary in order to get a good quantitative agreement with the experiment.
T2  - Physical Review B: Condensed Matter and Materials Physics
T1  - Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of alpha-MnSe
VL  - 77
IS  - 1
DO  - 10.1103/PhysRevB.77.014305
ER  - 

@article{
author = "Đokić, Dejan M. and Popović, Zoran V. and Vukajlović, Filip R.",
year = "2008",
abstract = "The effects of spin-phonon interaction and magnetic anisotropy on the temperature dependence of the infrared optical phonon modes in the antiferromagnetic alpha-MnSe are investigated by use of Greens function formalism within 1/z perturbation framework. The renormalization effects are calculated explicitly as a function of temperature, phonon-phonon, and spin-phonon interaction constants. Temperature dependence of the renormalized LO phonon frequencies of the F(1u) infrared active and combinational phonon modes are calculated and compared with experimental data. We have shown that the inclusion of anisotropy is necessary in order to get a good quantitative agreement with the experiment.",
journal = "Physical Review B: Condensed Matter and Materials Physics",
title = "Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of alpha-MnSe",
volume = "77",
number = "1",
doi = "10.1103/PhysRevB.77.014305"
}

Đokić, D. M., Popović, Z. V.,& Vukajlović, F. R.. (2008). Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of alpha-MnSe. in Physical Review B: Condensed Matter and Materials Physics, 77(1).
https://doi.org/10.1103/PhysRevB.77.014305

Đokić DM, Popović ZV, Vukajlović FR. Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of alpha-MnSe. in Physical Review B: Condensed Matter and Materials Physics. 2008;77(1).
doi:10.1103/PhysRevB.77.014305 .

Đokić, Dejan M., Popović, Zoran V., Vukajlović, Filip R., "Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of alpha-MnSe" in Physical Review B: Condensed Matter and Materials Physics, 77, no. 1 (2008),
https://doi.org/10.1103/PhysRevB.77.014305 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, Z. D.
AU  - Radović, Marko B.
AU  - Šćepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Popović, Zoran V.
AU  - Matović, Branko
AU  - Bošković, Snežana B.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3318
AB  - Raman spectra of Nd doped ceria nanocrystals were measured by gradual heating and cooling over the temperature range of 293-1073 K and analyzed using the phonon confinement model that incorporates inhomogeneous strain and anharmonic effects. We have demonstrated that in nanograins, four-phonon anharmonic processes are more dominant at higher temperatures than size effects. After the heat treatment, Nd doped ceria nanocrystals remain of nanometric range (similar to 20 nm) while the concentration of oxygen vacancies is still high in ceria lattice, making this material convenient for solid oxide fuel cells application. (c) 2007 American Institute of Physics.
T2  - Applied Physics Letters
T1  - Temperature-dependent raman study of Ce0.75Nd0.25O2-delta nanocrystals
VL  - 91
IS  - 20
DO  - 10.1063/1.2815928
ER  - 

@article{
author = "Dohcevic-Mitrovic, Z. D. and Radović, Marko B. and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Popović, Zoran V. and Matović, Branko and Bošković, Snežana B.",
year = "2007",
abstract = "Raman spectra of Nd doped ceria nanocrystals were measured by gradual heating and cooling over the temperature range of 293-1073 K and analyzed using the phonon confinement model that incorporates inhomogeneous strain and anharmonic effects. We have demonstrated that in nanograins, four-phonon anharmonic processes are more dominant at higher temperatures than size effects. After the heat treatment, Nd doped ceria nanocrystals remain of nanometric range (similar to 20 nm) while the concentration of oxygen vacancies is still high in ceria lattice, making this material convenient for solid oxide fuel cells application. (c) 2007 American Institute of Physics.",
journal = "Applied Physics Letters",
title = "Temperature-dependent raman study of Ce0.75Nd0.25O2-delta nanocrystals",
volume = "91",
number = "20",
doi = "10.1063/1.2815928"
}

Dohcevic-Mitrovic, Z. D., Radović, M. B., Šćepanović, M., Grujić-Brojčin, M., Popović, Z. V., Matović, B.,& Bošković, S. B.. (2007). Temperature-dependent raman study of Ce0.75Nd0.25O2-delta nanocrystals. in Applied Physics Letters, 91(20).
https://doi.org/10.1063/1.2815928

Dohcevic-Mitrovic ZD, Radović MB, Šćepanović M, Grujić-Brojčin M, Popović ZV, Matović B, Bošković SB. Temperature-dependent raman study of Ce0.75Nd0.25O2-delta nanocrystals. in Applied Physics Letters. 2007;91(20).
doi:10.1063/1.2815928 .

Dohcevic-Mitrovic, Z. D., Radović, Marko B., Šćepanović, Maja, Grujić-Brojčin, Mirjana, Popović, Zoran V., Matović, Branko, Bošković, Snežana B., "Temperature-dependent raman study of Ce0.75Nd0.25O2-delta nanocrystals" in Applied Physics Letters, 91, no. 20 (2007),
https://doi.org/10.1063/1.2815928 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, Z. D.
AU  - Grujić-Brojčin, Mirjana
AU  - Šćepanović, Maja
AU  - Popović, Zoran V.
AU  - Bošković, Snežana B.
AU  - Matović, Branko
AU  - Zinkevich, M.
AU  - Aldinger, Fritz
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6619
AB  - Nanopowdered solid solution Ce1-xY(Nd)(x)O2-delta samples ( 0.1 LT = x LT = 0.25) were made by self-propagating room temperature (SPRT) synthesis. The first-order Raman spectra of Ce1-xY(Nd)(x)O2-delta samples measured at room temperature exhibit three broad features: the main Raman active F-2g mode at about 450 cm(-1) and two broad features at about 550 (545) and 600 cm-1. The mode at similar to 600 cm(-1) was assigned to the intrinsic oxygen vacancies due to the nonstoichiometry of ceria nanopowders. The mode at about 550 (545) cm(-1) was attributed to the oxygen vacancies introduced into the ceria lattice whenever Ce4+ ions are replaced with trivalent cations (Y3+, Nd3+). The intensity of this mode increases with doping in both series of samples, indicating a change of O2- vacancy concentration. The mode frequency shifts in opposite direction in Y- and Nd-doped samples with doping level, suggesting that different types of defect space can occur in Y- and Nd-doped ceria nanopowders.
T2  - Journal of Physics: Condensed Matter
T1  - Ce1-xY(Nd)(x)O2-delta nanopowders: potential materials for intermediate temperature solid oxide fuel cells
VL  - 18
IS  - 33
SP  - S2061
EP  - S2068
DO  - 10.1088/0953-8984/18/33/S22
ER  - 

@article{
author = "Dohcevic-Mitrovic, Z. D. and Grujić-Brojčin, Mirjana and Šćepanović, Maja and Popović, Zoran V. and Bošković, Snežana B. and Matović, Branko and Zinkevich, M. and Aldinger, Fritz",
year = "2006",
abstract = "Nanopowdered solid solution Ce1-xY(Nd)(x)O2-delta samples ( 0.1 LT = x LT = 0.25) were made by self-propagating room temperature (SPRT) synthesis. The first-order Raman spectra of Ce1-xY(Nd)(x)O2-delta samples measured at room temperature exhibit three broad features: the main Raman active F-2g mode at about 450 cm(-1) and two broad features at about 550 (545) and 600 cm-1. The mode at similar to 600 cm(-1) was assigned to the intrinsic oxygen vacancies due to the nonstoichiometry of ceria nanopowders. The mode at about 550 (545) cm(-1) was attributed to the oxygen vacancies introduced into the ceria lattice whenever Ce4+ ions are replaced with trivalent cations (Y3+, Nd3+). The intensity of this mode increases with doping in both series of samples, indicating a change of O2- vacancy concentration. The mode frequency shifts in opposite direction in Y- and Nd-doped samples with doping level, suggesting that different types of defect space can occur in Y- and Nd-doped ceria nanopowders.",
journal = "Journal of Physics: Condensed Matter",
title = "Ce1-xY(Nd)(x)O2-delta nanopowders: potential materials for intermediate temperature solid oxide fuel cells",
volume = "18",
number = "33",
pages = "S2061-S2068",
doi = "10.1088/0953-8984/18/33/S22"
}

Dohcevic-Mitrovic, Z. D., Grujić-Brojčin, M., Šćepanović, M., Popović, Z. V., Bošković, S. B., Matović, B., Zinkevich, M.,& Aldinger, F.. (2006). Ce1-xY(Nd)(x)O2-delta nanopowders: potential materials for intermediate temperature solid oxide fuel cells. in Journal of Physics: Condensed Matter, 18(33), S2061-S2068.
https://doi.org/10.1088/0953-8984/18/33/S22

Dohcevic-Mitrovic ZD, Grujić-Brojčin M, Šćepanović M, Popović ZV, Bošković SB, Matović B, Zinkevich M, Aldinger F. Ce1-xY(Nd)(x)O2-delta nanopowders: potential materials for intermediate temperature solid oxide fuel cells. in Journal of Physics: Condensed Matter. 2006;18(33):S2061-S2068.
doi:10.1088/0953-8984/18/33/S22 .

Dohcevic-Mitrovic, Z. D., Grujić-Brojčin, Mirjana, Šćepanović, Maja, Popović, Zoran V., Bošković, Snežana B., Matović, Branko, Zinkevich, M., Aldinger, Fritz, "Ce1-xY(Nd)(x)O2-delta nanopowders: potential materials for intermediate temperature solid oxide fuel cells" in Journal of Physics: Condensed Matter, 18, no. 33 (2006):S2061-S2068,
https://doi.org/10.1088/0953-8984/18/33/S22 . .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Đurović, Dejan R.
AU  - Matović, Branko
AU  - Cancarević, Marija
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
AU  - Zinkevich, M.
AU  - Aldinger, Fritz
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6597
AB  - One of the methods for powder synthesis that is both cost and time effective is the self-propagating room temperature synthesis. We applied this method to synthesize rare earth doped ceria nanopowders. Since they exhibit very high ionic conductivity at intermediate temperatures these compositions are attractive for a new generation of nanostructured ceramics applicable in solid oxide fuel cells as electrolytes. In this paper we paid our attention to the reaction based on methathetical pathway, whereby solid solution nanopowders of rare earth elements with ceria were obtained at room temperature. Compositions of Ce1-xRexO2-delta (Re = Y, Nd) were synthesized with x ranging from 0 to 0.20. The reaction course is discussed and the properties of the obtained powders are presented.
T2  - Materials Science Forum
T1  - Reaction of Ce1-xRexO2-delta nanopowders synthesis
VL  - 518
SP  - 95
EP  - 100
DO  - 10.4028/www.scientific.net/MSF.518.95
ER  - 

@article{
author = "Bošković, Snežana B. and Đurović, Dejan R. and Matović, Branko and Cancarević, Marija and Dohcevic-Mitrovic, Z. and Popović, Zoran V. and Zinkevich, M. and Aldinger, Fritz",
year = "2006",
abstract = "One of the methods for powder synthesis that is both cost and time effective is the self-propagating room temperature synthesis. We applied this method to synthesize rare earth doped ceria nanopowders. Since they exhibit very high ionic conductivity at intermediate temperatures these compositions are attractive for a new generation of nanostructured ceramics applicable in solid oxide fuel cells as electrolytes. In this paper we paid our attention to the reaction based on methathetical pathway, whereby solid solution nanopowders of rare earth elements with ceria were obtained at room temperature. Compositions of Ce1-xRexO2-delta (Re = Y, Nd) were synthesized with x ranging from 0 to 0.20. The reaction course is discussed and the properties of the obtained powders are presented.",
journal = "Materials Science Forum",
title = "Reaction of Ce1-xRexO2-delta nanopowders synthesis",
volume = "518",
pages = "95-100",
doi = "10.4028/www.scientific.net/MSF.518.95"
}

Bošković, S. B., Đurović, D. R., Matović, B., Cancarević, M., Dohcevic-Mitrovic, Z., Popović, Z. V., Zinkevich, M.,& Aldinger, F.. (2006). Reaction of Ce1-xRexO2-delta nanopowders synthesis. in Materials Science Forum, 518, 95-100.
https://doi.org/10.4028/www.scientific.net/MSF.518.95

Bošković SB, Đurović DR, Matović B, Cancarević M, Dohcevic-Mitrovic Z, Popović ZV, Zinkevich M, Aldinger F. Reaction of Ce1-xRexO2-delta nanopowders synthesis. in Materials Science Forum. 2006;518:95-100.
doi:10.4028/www.scientific.net/MSF.518.95 .

Bošković, Snežana B., Đurović, Dejan R., Matović, Branko, Cancarević, Marija, Dohcevic-Mitrovic, Z., Popović, Zoran V., Zinkevich, M., Aldinger, Fritz, "Reaction of Ce1-xRexO2-delta nanopowders synthesis" in Materials Science Forum, 518 (2006):95-100,
https://doi.org/10.4028/www.scientific.net/MSF.518.95 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, ZD
AU  - Scepanovic, MJ
AU  - Grujić-Brojčin, Mirjana
AU  - Popović, Zoran V.
AU  - Bošković, Snežana B.
AU  - Matović, Branko
AU  - Zinkevich, MV
AU  - Aldinger, F
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2985
AB  - Ultrafine Ce1-xNdxO2-delta (x = 0-0.25) powders were synthesized by self-propagating room temperature synthesis. Raman spectra were measured at room temperature in the 300-700 cm(-1) spectral range. The shift and asymmetric broadening of the Raman F-2g mode at about 454 cm(-1) in pure and doped ceria samples could be explained with combined size and inhomogenous strain effects. Increased concentration of O2- vacancies with doping is followed by an appearance of new Raman feature at about 545 cm(-1). (c) 2005 Elsevier Ltd. All rights reserved.
T2  - Solid State Communications
T1  - The size and strain effects on the Raman spectra of Ce1-xNdxO2-delta (0 LT = x LT = 0.25) nanopowders
VL  - 137
IS  - 7
SP  - 387
EP  - 390
DO  - 10.1016/j.ssc.2005.12.006
ER  - 

@article{
author = "Dohcevic-Mitrovic, ZD and Scepanovic, MJ and Grujić-Brojčin, Mirjana and Popović, Zoran V. and Bošković, Snežana B. and Matović, Branko and Zinkevich, MV and Aldinger, F",
year = "2006",
abstract = "Ultrafine Ce1-xNdxO2-delta (x = 0-0.25) powders were synthesized by self-propagating room temperature synthesis. Raman spectra were measured at room temperature in the 300-700 cm(-1) spectral range. The shift and asymmetric broadening of the Raman F-2g mode at about 454 cm(-1) in pure and doped ceria samples could be explained with combined size and inhomogenous strain effects. Increased concentration of O2- vacancies with doping is followed by an appearance of new Raman feature at about 545 cm(-1). (c) 2005 Elsevier Ltd. All rights reserved.",
journal = "Solid State Communications",
title = "The size and strain effects on the Raman spectra of Ce1-xNdxO2-delta (0 LT = x LT = 0.25) nanopowders",
volume = "137",
number = "7",
pages = "387-390",
doi = "10.1016/j.ssc.2005.12.006"
}

Dohcevic-Mitrovic, Z., Scepanovic, M., Grujić-Brojčin, M., Popović, Z. V., Bošković, S. B., Matović, B., Zinkevich, M.,& Aldinger, F.. (2006). The size and strain effects on the Raman spectra of Ce1-xNdxO2-delta (0 LT = x LT = 0.25) nanopowders. in Solid State Communications, 137(7), 387-390.
https://doi.org/10.1016/j.ssc.2005.12.006

Dohcevic-Mitrovic Z, Scepanovic M, Grujić-Brojčin M, Popović ZV, Bošković SB, Matović B, Zinkevich M, Aldinger F. The size and strain effects on the Raman spectra of Ce1-xNdxO2-delta (0 LT = x LT = 0.25) nanopowders. in Solid State Communications. 2006;137(7):387-390.
doi:10.1016/j.ssc.2005.12.006 .

Dohcevic-Mitrovic, ZD, Scepanovic, MJ, Grujić-Brojčin, Mirjana, Popović, Zoran V., Bošković, Snežana B., Matović, Branko, Zinkevich, MV, Aldinger, F, "The size and strain effects on the Raman spectra of Ce1-xNdxO2-delta (0 LT = x LT = 0.25) nanopowders" in Solid State Communications, 137, no. 7 (2006):387-390,
https://doi.org/10.1016/j.ssc.2005.12.006 . .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Đurović, Dejan R.
AU  - Dohcevic-Mitrovic, Z
AU  - Popović, Zoran V.
AU  - Zinkevich, A
AU  - Aldinger, E
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6546
AB  - Ceria based solid solutions are promising ceramic electrolytes for SOFC which will be able to function at intermediate temperatures. In accordance with common trends to decrease the production and operating costs of new generation of SOFC materials the reaction based on metathetical pathway is described, whereby solid solution powders of rare earth doped ceria in the nanoscale range were obtained at room temperature. By simple hand mixing of reactants the reaction was enhanced, propagating afterwards by itself. Nanometric ceria powders doped with Y or Nd, as well as co doped with both cations were synthesized. Composition of Ce1-xMexO2-y ranged from x =0-0.25. The reaction course is described in detail and the properties of the obtained powders are presented. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC)
VL  - 145
IS  - 2
SP  - 237
EP  - 242
DO  - 10.1016/j.jpowsour.2005.01.085
ER  - 

@article{
author = "Bošković, Snežana B. and Đurović, Dejan R. and Dohcevic-Mitrovic, Z and Popović, Zoran V. and Zinkevich, A and Aldinger, E",
year = "2005",
abstract = "Ceria based solid solutions are promising ceramic electrolytes for SOFC which will be able to function at intermediate temperatures. In accordance with common trends to decrease the production and operating costs of new generation of SOFC materials the reaction based on metathetical pathway is described, whereby solid solution powders of rare earth doped ceria in the nanoscale range were obtained at room temperature. By simple hand mixing of reactants the reaction was enhanced, propagating afterwards by itself. Nanometric ceria powders doped with Y or Nd, as well as co doped with both cations were synthesized. Composition of Ce1-xMexO2-y ranged from x =0-0.25. The reaction course is described in detail and the properties of the obtained powders are presented. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC)",
volume = "145",
number = "2",
pages = "237-242",
doi = "10.1016/j.jpowsour.2005.01.085"
}

Bošković, S. B., Đurović, D. R., Dohcevic-Mitrovic, Z., Popović, Z. V., Zinkevich, A.,& Aldinger, E.. (2005). Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC). in Journal of Power Sources, 145(2), 237-242.
https://doi.org/10.1016/j.jpowsour.2005.01.085

Bošković SB, Đurović DR, Dohcevic-Mitrovic Z, Popović ZV, Zinkevich A, Aldinger E. Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC). in Journal of Power Sources. 2005;145(2):237-242.
doi:10.1016/j.jpowsour.2005.01.085 .

Bošković, Snežana B., Đurović, Dejan R., Dohcevic-Mitrovic, Z, Popović, Zoran V., Zinkevich, A, Aldinger, E, "Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC)" in Journal of Power Sources, 145, no. 2 (2005):237-242,
https://doi.org/10.1016/j.jpowsour.2005.01.085 . .

TY  - JOUR
AU  - Grujić-Brojčin, Mirjana
AU  - Scepanovic, MJ
AU  - Dohcevic-Mitrovic, ZD
AU  - Hinic, I
AU  - Matović, Branko
AU  - Stanisic, G
AU  - Popović, Zoran V.
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2896
AB  - Nanosized titanium dioxide (TiO2) is synthesized by laser-induced pyrolysis using titanium isopropoxide as a liquid precursor. The specific surface area of as-produced nanopowders measured by the Brunauer-Emmett-Teller method (BET) varies from 84 to 110 m(2)g(-1). X-ray diffraction (XRD) and Raman scattering, showed that the TiO2 nanocrystals had an anatase structure. The rain size of the nanoparticles was estimated from scanning electron microscopy, XRD and BET measurements. The reflection spectra of nanocrystalline TiO2 pressed pellets has been measured in the region between 80 and 1500 cm(-1) by Fourier transform infrared spectroscopy. To interpret the experimental results, a model based on a generalized Bruggeman effective medium approximation of a dielectric function has been proposed. It is based on the polycrystalline character of TIO2 nanoparticles including island-structure and porosity of the nanopowders, along with the anatase single crystal dielectric functions. Thus, by comparing the results of calculated and experimental infrared (IR) spectra, the values of microscopic parameters of nanocrystalline powders can be deduced.
T2  - Journal of Physics. D: Applied Physics
T1  - Infrared study of laser synthesized anatase TiO2 nanopowders
VL  - 38
IS  - 9
SP  - 1415
EP  - 1420
DO  - 10.1088/0022-3727/38/9/014
ER  - 

@article{
author = "Grujić-Brojčin, Mirjana and Scepanovic, MJ and Dohcevic-Mitrovic, ZD and Hinic, I and Matović, Branko and Stanisic, G and Popović, Zoran V.",
year = "2005",
abstract = "Nanosized titanium dioxide (TiO2) is synthesized by laser-induced pyrolysis using titanium isopropoxide as a liquid precursor. The specific surface area of as-produced nanopowders measured by the Brunauer-Emmett-Teller method (BET) varies from 84 to 110 m(2)g(-1). X-ray diffraction (XRD) and Raman scattering, showed that the TiO2 nanocrystals had an anatase structure. The rain size of the nanoparticles was estimated from scanning electron microscopy, XRD and BET measurements. The reflection spectra of nanocrystalline TiO2 pressed pellets has been measured in the region between 80 and 1500 cm(-1) by Fourier transform infrared spectroscopy. To interpret the experimental results, a model based on a generalized Bruggeman effective medium approximation of a dielectric function has been proposed. It is based on the polycrystalline character of TIO2 nanoparticles including island-structure and porosity of the nanopowders, along with the anatase single crystal dielectric functions. Thus, by comparing the results of calculated and experimental infrared (IR) spectra, the values of microscopic parameters of nanocrystalline powders can be deduced.",
journal = "Journal of Physics. D: Applied Physics",
title = "Infrared study of laser synthesized anatase TiO2 nanopowders",
volume = "38",
number = "9",
pages = "1415-1420",
doi = "10.1088/0022-3727/38/9/014"
}

Grujić-Brojčin, M., Scepanovic, M., Dohcevic-Mitrovic, Z., Hinic, I., Matović, B., Stanisic, G.,& Popović, Z. V.. (2005). Infrared study of laser synthesized anatase TiO2 nanopowders. in Journal of Physics. D: Applied Physics, 38(9), 1415-1420.
https://doi.org/10.1088/0022-3727/38/9/014

Grujić-Brojčin M, Scepanovic M, Dohcevic-Mitrovic Z, Hinic I, Matović B, Stanisic G, Popović ZV. Infrared study of laser synthesized anatase TiO2 nanopowders. in Journal of Physics. D: Applied Physics. 2005;38(9):1415-1420.
doi:10.1088/0022-3727/38/9/014 .

Grujić-Brojčin, Mirjana, Scepanovic, MJ, Dohcevic-Mitrovic, ZD, Hinic, I, Matović, Branko, Stanisic, G, Popović, Zoran V., "Infrared study of laser synthesized anatase TiO2 nanopowders" in Journal of Physics. D: Applied Physics, 38, no. 9 (2005):1415-1420,
https://doi.org/10.1088/0022-3727/38/9/014 . .

TY  - JOUR
AU  - Popović, Zoran V.
AU  - Satpathy, Sashi
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6330
AB  - The stability of the charge-stacked structure vis-a-vis the charge-alternate structure in the half-doped manganites is studied with a model that includes electronic kinetic energy, onsite and intersite Coulomb interactions, the Jahn-Teller energy, and the antiferromagnetic superexchange between the manganese core spins. It is shown that for a single zigzag chain, the electronic kinetic energy stabilizes the standard chain, with Mn3+ at the bridge site and Mn4+ at the corner site, over the reversed zigzag chain with the two Mn valences interchanged. The electronic kinetic energy and magnetic interactions stabilize the three-dimensional charge-stacked structure, while a large intersite Coulomb interaction Vgreater than or equal toV(c) would stabilize the charge-alternate structure. It is argued that the magnitude of V is small enough that the charge-stacked structure is stabilized in the half-doped manganites such as La1/2Ca1/2MnO3. (C) 2002 American Institute of Physics.
T2  - Journal of Applied Physics
T1  - Charge stacking in the half-doped manganites
VL  - 91
IS  - 10
SP  - 8132
EP  - 8134
DO  - 10.1063/1.1456435
ER  - 

@article{
author = "Popović, Zoran V. and Satpathy, Sashi",
year = "2002",
abstract = "The stability of the charge-stacked structure vis-a-vis the charge-alternate structure in the half-doped manganites is studied with a model that includes electronic kinetic energy, onsite and intersite Coulomb interactions, the Jahn-Teller energy, and the antiferromagnetic superexchange between the manganese core spins. It is shown that for a single zigzag chain, the electronic kinetic energy stabilizes the standard chain, with Mn3+ at the bridge site and Mn4+ at the corner site, over the reversed zigzag chain with the two Mn valences interchanged. The electronic kinetic energy and magnetic interactions stabilize the three-dimensional charge-stacked structure, while a large intersite Coulomb interaction Vgreater than or equal toV(c) would stabilize the charge-alternate structure. It is argued that the magnitude of V is small enough that the charge-stacked structure is stabilized in the half-doped manganites such as La1/2Ca1/2MnO3. (C) 2002 American Institute of Physics.",
journal = "Journal of Applied Physics",
title = "Charge stacking in the half-doped manganites",
volume = "91",
number = "10",
pages = "8132-8134",
doi = "10.1063/1.1456435"
}

Popović, Z. V.,& Satpathy, S.. (2002). Charge stacking in the half-doped manganites. in Journal of Applied Physics, 91(10), 8132-8134.
https://doi.org/10.1063/1.1456435

Popović ZV, Satpathy S. Charge stacking in the half-doped manganites. in Journal of Applied Physics. 2002;91(10):8132-8134.
doi:10.1063/1.1456435 .

Popović, Zoran V., Satpathy, Sashi, "Charge stacking in the half-doped manganites" in Journal of Applied Physics, 91, no. 10 (2002):8132-8134,
https://doi.org/10.1063/1.1456435 . .

TY  - JOUR
AU  - Popović, Zoran V.
AU  - Satpathy, Sashi
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2515
AB  - The microscopic origin of the charge and orbital order in the half-doped manganites is examined from ab initio density-functional calculations and exact diagonalization studies. It is shown that the dominant mechanism responsible for the charge order is the Jahn-Teller coupling, with a lesser but significant contribution from the on-site Coulomb interaction. The band structure shows a sizable interchain coupling between the zigzag chains, leading to a considerable band dispersion normal to the chains, in sharp contrast with the zigzag chain physics.
T2  - Physical Review Letters
T1  - Origin of charge-orbital order in the half-doped manganites
VL  - 88
IS  - 19
DO  - 10.1103/PhysRevLett.88.197201
ER  - 

@article{
author = "Popović, Zoran V. and Satpathy, Sashi",
year = "2002",
abstract = "The microscopic origin of the charge and orbital order in the half-doped manganites is examined from ab initio density-functional calculations and exact diagonalization studies. It is shown that the dominant mechanism responsible for the charge order is the Jahn-Teller coupling, with a lesser but significant contribution from the on-site Coulomb interaction. The band structure shows a sizable interchain coupling between the zigzag chains, leading to a considerable band dispersion normal to the chains, in sharp contrast with the zigzag chain physics.",
journal = "Physical Review Letters",
title = "Origin of charge-orbital order in the half-doped manganites",
volume = "88",
number = "19",
doi = "10.1103/PhysRevLett.88.197201"
}

Popović, Z. V.,& Satpathy, S.. (2002). Origin of charge-orbital order in the half-doped manganites. in Physical Review Letters, 88(19).
https://doi.org/10.1103/PhysRevLett.88.197201

Popović ZV, Satpathy S. Origin of charge-orbital order in the half-doped manganites. in Physical Review Letters. 2002;88(19).
doi:10.1103/PhysRevLett.88.197201 .

Popović, Zoran V., Satpathy, Sashi, "Origin of charge-orbital order in the half-doped manganites" in Physical Review Letters, 88, no. 19 (2002),
https://doi.org/10.1103/PhysRevLett.88.197201 . .

TY  - JOUR
AU  - Dohcevic, ZD
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Popović, Zoran V.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2484
AB  - Nanometric Si-C-N powders were obtained by CO2-laser- induced synthesis, starting from two different gas mixtures: SiH4-NH3-C2H4 or SiH4-NH3-C2H2. The variation in the initial gas mixture composition influences the local bonding and crystallinity of the powders. Infrared reflection spectroscopy and X- ray diffraction analysis have been used to investigate the final powder composition. The results show that it is possible to produce the ternary Si-C-N phase with a variable relative arrangement of silicon, nitrogen and carbon atoms on the sites of the amorphous network.
T2  - Philosophical Magazine A: -Physics of Condensed Matter Structure Defects and Mechanical Properties
T1  - Optical and structural characterization of laser-synthesized ultrafine Si-C-N powders
VL  - 82
IS  - 1
SP  - 93
EP  - 105
DO  - 10.1080/01418610208239999
ER  - 

@article{
author = "Dohcevic, ZD and Matović, Branko and Bošković, Snežana B. and Popović, Zoran V.",
year = "2002",
abstract = "Nanometric Si-C-N powders were obtained by CO2-laser- induced synthesis, starting from two different gas mixtures: SiH4-NH3-C2H4 or SiH4-NH3-C2H2. The variation in the initial gas mixture composition influences the local bonding and crystallinity of the powders. Infrared reflection spectroscopy and X- ray diffraction analysis have been used to investigate the final powder composition. The results show that it is possible to produce the ternary Si-C-N phase with a variable relative arrangement of silicon, nitrogen and carbon atoms on the sites of the amorphous network.",
journal = "Philosophical Magazine A: -Physics of Condensed Matter Structure Defects and Mechanical Properties",
title = "Optical and structural characterization of laser-synthesized ultrafine Si-C-N powders",
volume = "82",
number = "1",
pages = "93-105",
doi = "10.1080/01418610208239999"
}

Dohcevic, Z., Matović, B., Bošković, S. B.,& Popović, Z. V.. (2002). Optical and structural characterization of laser-synthesized ultrafine Si-C-N powders. in Philosophical Magazine A: -Physics of Condensed Matter Structure Defects and Mechanical Properties, 82(1), 93-105.
https://doi.org/10.1080/01418610208239999

Dohcevic Z, Matović B, Bošković SB, Popović ZV. Optical and structural characterization of laser-synthesized ultrafine Si-C-N powders. in Philosophical Magazine A: -Physics of Condensed Matter Structure Defects and Mechanical Properties. 2002;82(1):93-105.
doi:10.1080/01418610208239999 .

Dohcevic, ZD, Matović, Branko, Bošković, Snežana B., Popović, Zoran V., "Optical and structural characterization of laser-synthesized ultrafine Si-C-N powders" in Philosophical Magazine A: -Physics of Condensed Matter Structure Defects and Mechanical Properties, 82, no. 1 (2002):93-105,
https://doi.org/10.1080/01418610208239999 . .