TY  - JOUR
AU  - Ivanović, Nenad
AU  - Rodić, Dubravko
AU  - Koteski, Vasil J.
AU  - Radisavljević, Ivana
AU  - Novaković, Nikola
AU  - Marjanovic, D
AU  - Manasijević, Miodrag
AU  - Koicki, S
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2986
AB  - It has been established that the 16( c) first coordination clusters in the Ti2Ni structure type ( space group Fd3m) follow icosahedral- face orientational ordering along regular tetrahedron edge directions. The actual crystal structure appears due to the prevalence of the face- centred cubic translational ordering over the cluster assembling. This way, the competition of the ` regular crystal phase and its icosahedral analogue is reconstructed at the atomic level. The model accounts for the markedly different electronic characteristics at the different crystallographic positions obtained by hyperfine interaction measurements, and other curious experimental facts help to create an exact physical definition of the first coordination in the solid state and to distinguish between various structure types on fundamental principles.
T2  - Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials
T1  - Cluster approach to the Ti2Ni structure type
VL  - 62
SP  - 1
EP  - 8
DO  - 10.1107/S010876810503764X
ER  - 

@article{
author = "Ivanović, Nenad and Rodić, Dubravko and Koteski, Vasil J. and Radisavljević, Ivana and Novaković, Nikola and Marjanovic, D and Manasijević, Miodrag and Koicki, S",
year = "2006",
abstract = "It has been established that the 16( c) first coordination clusters in the Ti2Ni structure type ( space group Fd3m) follow icosahedral- face orientational ordering along regular tetrahedron edge directions. The actual crystal structure appears due to the prevalence of the face- centred cubic translational ordering over the cluster assembling. This way, the competition of the ` regular crystal phase and its icosahedral analogue is reconstructed at the atomic level. The model accounts for the markedly different electronic characteristics at the different crystallographic positions obtained by hyperfine interaction measurements, and other curious experimental facts help to create an exact physical definition of the first coordination in the solid state and to distinguish between various structure types on fundamental principles.",
journal = "Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials",
title = "Cluster approach to the Ti2Ni structure type",
volume = "62",
pages = "1-8",
doi = "10.1107/S010876810503764X"
}

Ivanović, N., Rodić, D., Koteski, V. J., Radisavljević, I., Novaković, N., Marjanovic, D., Manasijević, M.,& Koicki, S.. (2006). Cluster approach to the Ti2Ni structure type. in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 62, 1-8.
https://doi.org/10.1107/S010876810503764X

Ivanović N, Rodić D, Koteski VJ, Radisavljević I, Novaković N, Marjanovic D, Manasijević M, Koicki S. Cluster approach to the Ti2Ni structure type. in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 2006;62:1-8.
doi:10.1107/S010876810503764X .

Ivanović, Nenad, Rodić, Dubravko, Koteski, Vasil J., Radisavljević, Ivana, Novaković, Nikola, Marjanovic, D, Manasijević, Miodrag, Koicki, S, "Cluster approach to the Ti2Ni structure type" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, 62 (2006):1-8,
https://doi.org/10.1107/S010876810503764X . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rodić, Dubravko
AU  - Nikolić, Aleksandar S.
AU  - Kačarević-Popović, Zorica M.
AU  - Karanović, Ljiljana
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2507
AB  - In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoffs positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - The change of crystal symmetry and cation ordering in Li-Mg ferrites
VL  - 336
IS  - 1-2
SP  - 286
EP  - 291
DO  - 10.1016/S0925-8388(01)01885-0
ER  - 

@article{
author = "Antić, Bratislav and Rodić, Dubravko and Nikolić, Aleksandar S. and Kačarević-Popović, Zorica M. and Karanović, Ljiljana",
year = "2002",
abstract = "In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoffs positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "The change of crystal symmetry and cation ordering in Li-Mg ferrites",
volume = "336",
number = "1-2",
pages = "286-291",
doi = "10.1016/S0925-8388(01)01885-0"
}

Antić, B., Rodić, D., Nikolić, A. S., Kačarević-Popović, Z. M.,& Karanović, L.. (2002). The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds, 336(1-2), 286-291.
https://doi.org/10.1016/S0925-8388(01)01885-0

Antić B, Rodić D, Nikolić AS, Kačarević-Popović ZM, Karanović L. The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds. 2002;336(1-2):286-291.
doi:10.1016/S0925-8388(01)01885-0 .

Antić, Bratislav, Rodić, Dubravko, Nikolić, Aleksandar S., Kačarević-Popović, Zorica M., Karanović, Ljiljana, "The change of crystal symmetry and cation ordering in Li-Mg ferrites" in Journal of Alloys and Compounds, 336, no. 1-2 (2002):286-291,
https://doi.org/10.1016/S0925-8388(01)01885-0 . .

TY  - JOUR
AU  - Rodić, Dubravko
AU  - Mitrić, Miodrag
AU  - Tellgren, Rolland
AU  - Rundlof, H.
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2440
AB  - The samples of Y3Fe(5-x)AlxO12 (x = 1,2,3,4,5) were sintered from corresponding mixed hydroxides that were obtained by coprecipitation of mixed nitrates. The neutron diffraction experiments were done, for all the samples, at 295 and 10 K. All the samples crystallize in the garnet structure type. The iron and aluminum ions occupy tetrahedral and octahedral positions. The preferential distribution of these cations is found. The iron ions preferentially occupy octahedral positions, the smaller aluminum ions preferentially occupy the smaller tetrahedral positions. The samples with x = 1, 2 are collinear ferrimagnetics, with antiparallel moments in tetrahedral and octahedral positions, at 10 K. The sample with x = 1 retains this magnetic order at 295 K. The magnetically ordered phases were refined in the cubic space group Ia3d and in the rhombohedral space group R-3c. In the rhombohedral space group the magnetic moments of the iron ions at 10 K are -3.94(6) and -3.6(1)mu (B) in the tetrahedral position and 4.28(5) and 3.75(7)mu (B) in the octahedral position, for samples with x = 1,2, respectively. In the R-3c the total magnetic moment, per formula unit, agrees with the results of the classical magnetic measurements. Both samples (x = 1,2) are rhombohedral at low temperatures and the symmetry of s = 1 sample approaches the cubic with the increase of temperature. (C) 2001 Elsevier Science B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12
VL  - 232
IS  - 1-2
SP  - 1
EP  - 8
DO  - 10.1016/S0304-8853(01)00211-6
ER  - 

@article{
author = "Rodić, Dubravko and Mitrić, Miodrag and Tellgren, Rolland and Rundlof, H.",
year = "2001",
abstract = "The samples of Y3Fe(5-x)AlxO12 (x = 1,2,3,4,5) were sintered from corresponding mixed hydroxides that were obtained by coprecipitation of mixed nitrates. The neutron diffraction experiments were done, for all the samples, at 295 and 10 K. All the samples crystallize in the garnet structure type. The iron and aluminum ions occupy tetrahedral and octahedral positions. The preferential distribution of these cations is found. The iron ions preferentially occupy octahedral positions, the smaller aluminum ions preferentially occupy the smaller tetrahedral positions. The samples with x = 1, 2 are collinear ferrimagnetics, with antiparallel moments in tetrahedral and octahedral positions, at 10 K. The sample with x = 1 retains this magnetic order at 295 K. The magnetically ordered phases were refined in the cubic space group Ia3d and in the rhombohedral space group R-3c. In the rhombohedral space group the magnetic moments of the iron ions at 10 K are -3.94(6) and -3.6(1)mu (B) in the tetrahedral position and 4.28(5) and 3.75(7)mu (B) in the octahedral position, for samples with x = 1,2, respectively. In the R-3c the total magnetic moment, per formula unit, agrees with the results of the classical magnetic measurements. Both samples (x = 1,2) are rhombohedral at low temperatures and the symmetry of s = 1 sample approaches the cubic with the increase of temperature. (C) 2001 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12",
volume = "232",
number = "1-2",
pages = "1-8",
doi = "10.1016/S0304-8853(01)00211-6"
}

Rodić, D., Mitrić, M., Tellgren, R.,& Rundlof, H.. (2001). The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12. in Journal of Magnetism and Magnetic Materials, 232(1-2), 1-8.
https://doi.org/10.1016/S0304-8853(01)00211-6

Rodić D, Mitrić M, Tellgren R, Rundlof H. The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12. in Journal of Magnetism and Magnetic Materials. 2001;232(1-2):1-8.
doi:10.1016/S0304-8853(01)00211-6 .

Rodić, Dubravko, Mitrić, Miodrag, Tellgren, Rolland, Rundlof, H., "The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12" in Journal of Magnetism and Magnetic Materials, 232, no. 1-2 (2001):1-8,
https://doi.org/10.1016/S0304-8853(01)00211-6 . .

TY  - JOUR
AU  - Ivanović, Nenad
AU  - Rodić, Dubravko
AU  - Cekić, Božidar Đ.
AU  - Manasijević, Miodrag
AU  - Koteski, Vasil J.
AU  - Koicki, S
AU  - Marjanovic, D
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6314
AB  - Some properties of the Hf-X (X-transition metal) systems obtained by x-ray diffraction, hyperfine interaction measurements by time differential perturbed angular correlations of gamma rays (TDPAC), and Faraday method magnetic susceptibility chi measurements, are investigated. Special attention is paid to the influence of the ordering of the X ions microstructure and their arrangement in the crystal lattice, on the magnetic properties of the Hf-X systems. Its shown up that X ions in the systems with different crystal structures (Ti2Ni, MgCu2, quasicrystalline) form almost identical, close-packed tetrahedral microstructures, but that their arrangement in the crystal lattice is essentially different. Obtained results suggest that besides the mentioned arrangement of the X-ions microstructures, magnitude of Hf-X e.g. X-X coupling substantially influence the magnetic properties of the systems.
T2  - Materials Science Forum
T1  - The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems
VL  - 352
SP  - 261
EP  - 265
DO  - 10.4028/www.scientific.net/MSF.352.261
ER  - 

@article{
author = "Ivanović, Nenad and Rodić, Dubravko and Cekić, Božidar Đ. and Manasijević, Miodrag and Koteski, Vasil J. and Koicki, S and Marjanovic, D",
year = "2000",
abstract = "Some properties of the Hf-X (X-transition metal) systems obtained by x-ray diffraction, hyperfine interaction measurements by time differential perturbed angular correlations of gamma rays (TDPAC), and Faraday method magnetic susceptibility chi measurements, are investigated. Special attention is paid to the influence of the ordering of the X ions microstructure and their arrangement in the crystal lattice, on the magnetic properties of the Hf-X systems. Its shown up that X ions in the systems with different crystal structures (Ti2Ni, MgCu2, quasicrystalline) form almost identical, close-packed tetrahedral microstructures, but that their arrangement in the crystal lattice is essentially different. Obtained results suggest that besides the mentioned arrangement of the X-ions microstructures, magnitude of Hf-X e.g. X-X coupling substantially influence the magnetic properties of the systems.",
journal = "Materials Science Forum",
title = "The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems",
volume = "352",
pages = "261-265",
doi = "10.4028/www.scientific.net/MSF.352.261"
}

Ivanović, N., Rodić, D., Cekić, B. Đ., Manasijević, M., Koteski, V. J., Koicki, S.,& Marjanovic, D.. (2000). The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems. in Materials Science Forum, 352, 261-265.
https://doi.org/10.4028/www.scientific.net/MSF.352.261

Ivanović N, Rodić D, Cekić BĐ, Manasijević M, Koteski VJ, Koicki S, Marjanovic D. The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems. in Materials Science Forum. 2000;352:261-265.
doi:10.4028/www.scientific.net/MSF.352.261 .

Ivanović, Nenad, Rodić, Dubravko, Cekić, Božidar Đ., Manasijević, Miodrag, Koteski, Vasil J., Koicki, S, Marjanovic, D, "The influence of the transition metal atoms (X) microstructural ordering on the magnetic properties of the Hf-X systems" in Materials Science Forum, 352 (2000):261-265,
https://doi.org/10.4028/www.scientific.net/MSF.352.261 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rodić, Dubravko
AU  - Tellgren, Rolland
AU  - Rundlof, H.
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2374
AB  - The Co2.50Sb0.50O4 spinel has been studied by neutron diffraction in the temperature range 10-90 K and at room temperature. The crystal and magnetic structures were solved by the use of the Rietveld method. The cationic distribution was determined to be (Co-1.00(2+))(8a) [Co0.503+Co1.002+Sb0.505+](16d), where 8a and 16d denote tetrahedral and octahedral crystallographic sites, respectively. A collinear ferrimagnetic structure with T-C approximate to 60 K has been found. The obtained Values of magnetic moments of Co2+ ions at 10 K, mu(8a)(Co2+) = 2.6 mu(B) and mu(16d) (Co2+) = 2.9 mu(B), are smaller than expected and we discuss this result. (C) 2000 Elsevier Science B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel
VL  - 219
IS  - 1
SP  - 41
EP  - 44
DO  - 10.1016/S0304-8853(00)00234-1
ER  - 

@article{
author = "Antić, Bratislav and Rodić, Dubravko and Tellgren, Rolland and Rundlof, H.",
year = "2000",
abstract = "The Co2.50Sb0.50O4 spinel has been studied by neutron diffraction in the temperature range 10-90 K and at room temperature. The crystal and magnetic structures were solved by the use of the Rietveld method. The cationic distribution was determined to be (Co-1.00(2+))(8a) [Co0.503+Co1.002+Sb0.505+](16d), where 8a and 16d denote tetrahedral and octahedral crystallographic sites, respectively. A collinear ferrimagnetic structure with T-C approximate to 60 K has been found. The obtained Values of magnetic moments of Co2+ ions at 10 K, mu(8a)(Co2+) = 2.6 mu(B) and mu(16d) (Co2+) = 2.9 mu(B), are smaller than expected and we discuss this result. (C) 2000 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel",
volume = "219",
number = "1",
pages = "41-44",
doi = "10.1016/S0304-8853(00)00234-1"
}

Antić, B., Rodić, D., Tellgren, R.,& Rundlof, H.. (2000). Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel. in Journal of Magnetism and Magnetic Materials, 219(1), 41-44.
https://doi.org/10.1016/S0304-8853(00)00234-1

Antić B, Rodić D, Tellgren R, Rundlof H. Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel. in Journal of Magnetism and Magnetic Materials. 2000;219(1):41-44.
doi:10.1016/S0304-8853(00)00234-1 .

Antić, Bratislav, Rodić, Dubravko, Tellgren, Rolland, Rundlof, H., "Neutron diffraction study of the magnetic and structure properties of Co2.50Sb0.50O4 spinel" in Journal of Magnetism and Magnetic Materials, 219, no. 1 (2000):41-44,
https://doi.org/10.1016/S0304-8853(00)00234-1 . .

TY  - JOUR
AU  - Rodić, Dubravko
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Tellgren, Rolland
AU  - Rundlof, H.
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2344
AB  - In order to examine the influence of the dilution of magnetic ions on the crystal and magnetic structure of NixZn1-xO (x = 1, 0.90, 0.80, 0.70) solid solutions we have performed neutron diffraction experiments on each sample at seven temperatures between 10 and 295 K. To determine the Neel temperatures, the magnetic susceptibility measurements were done in the temperature region between room temperature and 600 K. Starting from the known rhombohedral distortion the crystal structure has been refined in the trigonal space group R (3) over bar m. fn this space group the cations occupy octahedral 3a position (with the local symmetry (3) over bar m), while the oxygen anion is placed in the 3b position (with the local symmetry (3) over bar m). The magnetic structure for all concentrations x is found to be antiferromagnetic and the magnetic cell is the doubled nuclear cell along the c-axis. The magnetic atoms art: arranged in the planes (003) in respect to the nuclear cell. The magnetic moments of two Ni2+ ions in adjacent sheets are oriented antiparallely and the magnetic vector makes an angle of 66 degrees with the c-axis. The magnetic structure is preserved upon random site dilution of the magnetic ions. This is additionally confirmed from the Brillouin-type dependence of the magnetization on temperature as well as from the t = T-N(x)/T-N(1) versus x variation obtained from the magnetic susceptibility measurements. Concentration dependence of the Neel temperature also shows that NixZn1-xO behaves like a Heisenberg antiferromagnet with the dominant nearest-neighbor interaction, in agreement with the similar (Ni, Co)(x)Mg1-xO solid solution.
T2  - Physica Status Solidi. B: Basic Research
T1  - Magnetic ordering in polycrystalline NixZn1-xO solid solutions
VL  - 218
IS  - 2
SP  - 527
EP  - 536
DO  - 10.1002/1521-3951(200004)218:2 LT 527::AID-PSSB527 GT 3.3.CO;2-9
ER  - 

@article{
author = "Rodić, Dubravko and Spasojević, Vojislav and Kusigerski, Vladan and Tellgren, Rolland and Rundlof, H.",
year = "2000",
abstract = "In order to examine the influence of the dilution of magnetic ions on the crystal and magnetic structure of NixZn1-xO (x = 1, 0.90, 0.80, 0.70) solid solutions we have performed neutron diffraction experiments on each sample at seven temperatures between 10 and 295 K. To determine the Neel temperatures, the magnetic susceptibility measurements were done in the temperature region between room temperature and 600 K. Starting from the known rhombohedral distortion the crystal structure has been refined in the trigonal space group R (3) over bar m. fn this space group the cations occupy octahedral 3a position (with the local symmetry (3) over bar m), while the oxygen anion is placed in the 3b position (with the local symmetry (3) over bar m). The magnetic structure for all concentrations x is found to be antiferromagnetic and the magnetic cell is the doubled nuclear cell along the c-axis. The magnetic atoms art: arranged in the planes (003) in respect to the nuclear cell. The magnetic moments of two Ni2+ ions in adjacent sheets are oriented antiparallely and the magnetic vector makes an angle of 66 degrees with the c-axis. The magnetic structure is preserved upon random site dilution of the magnetic ions. This is additionally confirmed from the Brillouin-type dependence of the magnetization on temperature as well as from the t = T-N(x)/T-N(1) versus x variation obtained from the magnetic susceptibility measurements. Concentration dependence of the Neel temperature also shows that NixZn1-xO behaves like a Heisenberg antiferromagnet with the dominant nearest-neighbor interaction, in agreement with the similar (Ni, Co)(x)Mg1-xO solid solution.",
journal = "Physica Status Solidi. B: Basic Research",
title = "Magnetic ordering in polycrystalline NixZn1-xO solid solutions",
volume = "218",
number = "2",
pages = "527-536",
doi = "10.1002/1521-3951(200004)218:2 LT 527::AID-PSSB527 GT 3.3.CO;2-9"
}

Rodić, D., Spasojević, V., Kusigerski, V., Tellgren, R.,& Rundlof, H.. (2000). Magnetic ordering in polycrystalline NixZn1-xO solid solutions. in Physica Status Solidi. B: Basic Research, 218(2), 527-536.
https://doi.org/10.1002/1521-3951(200004)218:2 LT 527::AID-PSSB527 GT 3.3.CO;2-9

Rodić D, Spasojević V, Kusigerski V, Tellgren R, Rundlof H. Magnetic ordering in polycrystalline NixZn1-xO solid solutions. in Physica Status Solidi. B: Basic Research. 2000;218(2):527-536.
doi:10.1002/1521-3951(200004)218:2 LT 527::AID-PSSB527 GT 3.3.CO;2-9 .

Rodić, Dubravko, Spasojević, Vojislav, Kusigerski, Vladan, Tellgren, Rolland, Rundlof, H., "Magnetic ordering in polycrystalline NixZn1-xO solid solutions" in Physica Status Solidi. B: Basic Research, 218, no. 2 (2000):527-536,
https://doi.org/10.1002/1521-3951(200004)218:2 LT 527::AID-PSSB527 GT 3.3.CO;2-9 . .

TY  - JOUR
AU  - Blanuša, Jovan
AU  - Mitrić, Miodrag
AU  - Rodić, Dubravko
AU  - Szytula, Andrzej
AU  - Slaski, M
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2340
AB  - The polycrystalline samples of TmxY2-xO3 (x = 0.1, 0.2, 0.4, 0.6, 1, 1.4, 1.8) were obtained by ceramic technology. X-ray diffraction data were collected and the crystal structures were refined by the Rietveld method, A random distribution of Tm3+ ions over two cationic sites, 8b and 24d, in the space group Ia (3) over bar was found. Magnetic susceptibility measurements of all samples were done using a SQUID susceptometer in a temperature range 4 K LT T LT 290 K, Above 90 K a Curie-Weiss law was observed, while below 90 K the inverse magnetic susceptibility deviates from linearity due to the crystal-held influence. Deduced effective magnetic moments are close to the free ion values. In the whole temperature range the susceptibility data were fitted in accordance with the axial symmetry approximation of the crystal field and corresponding values of the crystal-field energy levels were deduced. (C) 2000 Elsevier Science B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3
VL  - 213
IS  - 1-2
SP  - 75
EP  - 81
DO  - 10.1016/S0304-8853(99)00797-0
ER  - 

@article{
author = "Blanuša, Jovan and Mitrić, Miodrag and Rodić, Dubravko and Szytula, Andrzej and Slaski, M",
year = "2000",
abstract = "The polycrystalline samples of TmxY2-xO3 (x = 0.1, 0.2, 0.4, 0.6, 1, 1.4, 1.8) were obtained by ceramic technology. X-ray diffraction data were collected and the crystal structures were refined by the Rietveld method, A random distribution of Tm3+ ions over two cationic sites, 8b and 24d, in the space group Ia (3) over bar was found. Magnetic susceptibility measurements of all samples were done using a SQUID susceptometer in a temperature range 4 K LT T LT 290 K, Above 90 K a Curie-Weiss law was observed, while below 90 K the inverse magnetic susceptibility deviates from linearity due to the crystal-held influence. Deduced effective magnetic moments are close to the free ion values. In the whole temperature range the susceptibility data were fitted in accordance with the axial symmetry approximation of the crystal field and corresponding values of the crystal-field energy levels were deduced. (C) 2000 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3",
volume = "213",
number = "1-2",
pages = "75-81",
doi = "10.1016/S0304-8853(99)00797-0"
}

Blanuša, J., Mitrić, M., Rodić, D., Szytula, A.,& Slaski, M.. (2000). An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3. in Journal of Magnetism and Magnetic Materials, 213(1-2), 75-81.
https://doi.org/10.1016/S0304-8853(99)00797-0

Blanuša J, Mitrić M, Rodić D, Szytula A, Slaski M. An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3. in Journal of Magnetism and Magnetic Materials. 2000;213(1-2):75-81.
doi:10.1016/S0304-8853(99)00797-0 .

Blanuša, Jovan, Mitrić, Miodrag, Rodić, Dubravko, Szytula, Andrzej, Slaski, M, "An X-ray diffraction and magnetic susceptibility study of TmxY2-xO3" in Journal of Magnetism and Magnetic Materials, 213, no. 1-2 (2000):75-81,
https://doi.org/10.1016/S0304-8853(99)00797-0 . .

TY  - JOUR
AU  - Rodić, Dubravko
AU  - Mitrić, Miodrag
AU  - Tellgren, Rolland
AU  - Rundlof, H.
AU  - Kremenović, Aleksandar S.
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2211
AB  - To examine and emphasize the difference between approximative and true magnetic structure, we choose ferrimagnetic garnet Y3Fe5O12 whose magnetic properties are well known. In order to study the magnetic structure, neutron diffraction experiments were done on powder sample of Y3Fe5O12 at 10 and 295 K at zero field and at 295 K in the applied held B = 0.2 T. Using these data the crystal and magnetic structures were first refined in the space group Ia3d. Beside the use of a cubic space group, for a magnetically ordered crystal, this solution suffers from unrealistic magnetic moment per formula unit, which are all significantly above 5 mu(B) and temperature factors at 10 K which lead to unreliable Debye temperature. To satisfy compatibility of the symmetry of the magnetic moments (oriented along the body diagonal in cubic system) and crystal symmetry, the crystal and magnetic structures were also refined in the trigonal space group R (3) over bar. In this group the magnetic moments orientation, along the principal axis, is compatible with the symmetry of local positions. The magnetic R factors are significantly lower than in cubic system. The magnetic moment per formula unit: 3.1 mu(B), from the diffraction measurements in the field, is close to the result obtained by classical measurements of magnetization. (C) 1999 Elsevier Science B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions
VL  - 191
IS  - 1-2
SP  - 137
EP  - 145
DO  - 10.1016/S0304-8853(98)00317-5
ER  - 

@article{
author = "Rodić, Dubravko and Mitrić, Miodrag and Tellgren, Rolland and Rundlof, H. and Kremenović, Aleksandar S.",
year = "1999",
abstract = "To examine and emphasize the difference between approximative and true magnetic structure, we choose ferrimagnetic garnet Y3Fe5O12 whose magnetic properties are well known. In order to study the magnetic structure, neutron diffraction experiments were done on powder sample of Y3Fe5O12 at 10 and 295 K at zero field and at 295 K in the applied held B = 0.2 T. Using these data the crystal and magnetic structures were first refined in the space group Ia3d. Beside the use of a cubic space group, for a magnetically ordered crystal, this solution suffers from unrealistic magnetic moment per formula unit, which are all significantly above 5 mu(B) and temperature factors at 10 K which lead to unreliable Debye temperature. To satisfy compatibility of the symmetry of the magnetic moments (oriented along the body diagonal in cubic system) and crystal symmetry, the crystal and magnetic structures were also refined in the trigonal space group R (3) over bar. In this group the magnetic moments orientation, along the principal axis, is compatible with the symmetry of local positions. The magnetic R factors are significantly lower than in cubic system. The magnetic moment per formula unit: 3.1 mu(B), from the diffraction measurements in the field, is close to the result obtained by classical measurements of magnetization. (C) 1999 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions",
volume = "191",
number = "1-2",
pages = "137-145",
doi = "10.1016/S0304-8853(98)00317-5"
}

Rodić, D., Mitrić, M., Tellgren, R., Rundlof, H.,& Kremenović, A. S.. (1999). True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions. in Journal of Magnetism and Magnetic Materials, 191(1-2), 137-145.
https://doi.org/10.1016/S0304-8853(98)00317-5

Rodić D, Mitrić M, Tellgren R, Rundlof H, Kremenović AS. True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions. in Journal of Magnetism and Magnetic Materials. 1999;191(1-2):137-145.
doi:10.1016/S0304-8853(98)00317-5 .

Rodić, Dubravko, Mitrić, Miodrag, Tellgren, Rolland, Rundlof, H., Kremenović, Aleksandar S., "True magnetic structure of the ferrimagnetic garnet Y3Fe5O12 and magnetic moments of iron ions" in Journal of Magnetism and Magnetic Materials, 191, no. 1-2 (1999):137-145,
https://doi.org/10.1016/S0304-8853(98)00317-5 . .

TY  - JOUR
AU  - Rakić, Srđan
AU  - Markov, B.
AU  - Rodić, Dubravko
AU  - Kapor, Agneš
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2184
AB  - Solid solution (Fe1-xCrx)(H2O)(6)(NO3)(3)x3H(2)O was crystallized in different ratios of basic nitrates-nonahydrates of chromium and iron. The x-ray diffractometer method showed their structural isomorphism. Magnetic susceptibility measurements showed their paramagnetism. The dependence of molar susceptibility on concentration x is linear. The calculated magnetic moments for Cr and Fe are in good agreement with values taken from the literature.
T2  - Solid State Phenomena
T1  - Magnetic properties of the solid solution of Fe (III) and Cr (III) nitrate-nonahydrate
VL  - 61-2
SP  - 363
EP  - 366
DO  - 10.4028/www.scientific.net/SSP.61-62.363
ER  - 

@article{
author = "Rakić, Srđan and Markov, B. and Rodić, Dubravko and Kapor, Agneš",
year = "1998",
abstract = "Solid solution (Fe1-xCrx)(H2O)(6)(NO3)(3)x3H(2)O was crystallized in different ratios of basic nitrates-nonahydrates of chromium and iron. The x-ray diffractometer method showed their structural isomorphism. Magnetic susceptibility measurements showed their paramagnetism. The dependence of molar susceptibility on concentration x is linear. The calculated magnetic moments for Cr and Fe are in good agreement with values taken from the literature.",
journal = "Solid State Phenomena",
title = "Magnetic properties of the solid solution of Fe (III) and Cr (III) nitrate-nonahydrate",
volume = "61-2",
pages = "363-366",
doi = "10.4028/www.scientific.net/SSP.61-62.363"
}

Rakić, S., Markov, B., Rodić, D.,& Kapor, A.. (1998). Magnetic properties of the solid solution of Fe (III) and Cr (III) nitrate-nonahydrate. in Solid State Phenomena, 61-2, 363-366.
https://doi.org/10.4028/www.scientific.net/SSP.61-62.363

Rakić S, Markov B, Rodić D, Kapor A. Magnetic properties of the solid solution of Fe (III) and Cr (III) nitrate-nonahydrate. in Solid State Phenomena. 1998;61-2:363-366.
doi:10.4028/www.scientific.net/SSP.61-62.363 .

Rakić, Srđan, Markov, B., Rodić, Dubravko, Kapor, Agneš, "Magnetic properties of the solid solution of Fe (III) and Cr (III) nitrate-nonahydrate" in Solid State Phenomena, 61-2 (1998):363-366,
https://doi.org/10.4028/www.scientific.net/SSP.61-62.363 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Mitrić, Miodrag
AU  - Rodić, Dubravko
AU  - Zhong, Yicheng
AU  - Artemov, Y.
AU  - Bogdanović, Stefan
AU  - Friedman, Jonathan R.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2166
AB  - The magnetic susceptibility of the diluted magnetic Lu2-xGdxO3 (x=0.06, 0.10, 0.22, 0.40, 1.00, 1.40; 1.80) was measured in the temperature range 1.7-295 K. The inverse susceptibility changes slope to a smaller value below 2.2 K for the samples with x less than or equal to 0.40. In the cubic Lu0.20Gd1.80O3 the slope increases below 2.8 K. These changes are attributed to the large difference in susceptibility for two cationic sites at low temperatures and to the crystallographic distribution of Gd3+ ions. The monoclinic Lu0.20Gd1.80O3, which was obtained from the stoichiometrically similar cubic phase at 1620 K, has an antiferromagnetic phase transition at 3.4 K. The magnetic-ion distribution for low-concentration samples (x = 0.06, 0.10) was studied using an isolated-cluster method in the nearest-neighbor approximation. In these samples a tendency for magnetic-ion cluster formation was found. A random cluster distribution was found to be consistent with the susceptibility data for the sample with x = 0.06. For the x = 0.10 sample the susceptibility calculated with a modified cluster distribution gives the best agreement with the experimental results.
T2  - Physical Review B: Condensed Matter and Materials Physics
T1  - Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3
VL  - 58
IS  - 6
SP  - 3212
EP  - 3217
DO  - 10.1103/PhysRevB.58.3212
ER  - 

@article{
author = "Antić, Bratislav and Mitrić, Miodrag and Rodić, Dubravko and Zhong, Yicheng and Artemov, Y. and Bogdanović, Stefan and Friedman, Jonathan R.",
year = "1998",
abstract = "The magnetic susceptibility of the diluted magnetic Lu2-xGdxO3 (x=0.06, 0.10, 0.22, 0.40, 1.00, 1.40; 1.80) was measured in the temperature range 1.7-295 K. The inverse susceptibility changes slope to a smaller value below 2.2 K for the samples with x less than or equal to 0.40. In the cubic Lu0.20Gd1.80O3 the slope increases below 2.8 K. These changes are attributed to the large difference in susceptibility for two cationic sites at low temperatures and to the crystallographic distribution of Gd3+ ions. The monoclinic Lu0.20Gd1.80O3, which was obtained from the stoichiometrically similar cubic phase at 1620 K, has an antiferromagnetic phase transition at 3.4 K. The magnetic-ion distribution for low-concentration samples (x = 0.06, 0.10) was studied using an isolated-cluster method in the nearest-neighbor approximation. In these samples a tendency for magnetic-ion cluster formation was found. A random cluster distribution was found to be consistent with the susceptibility data for the sample with x = 0.06. For the x = 0.10 sample the susceptibility calculated with a modified cluster distribution gives the best agreement with the experimental results.",
journal = "Physical Review B: Condensed Matter and Materials Physics",
title = "Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3",
volume = "58",
number = "6",
pages = "3212-3217",
doi = "10.1103/PhysRevB.58.3212"
}

Antić, B., Mitrić, M., Rodić, D., Zhong, Y., Artemov, Y., Bogdanović, S.,& Friedman, J. R.. (1998). Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3. in Physical Review B: Condensed Matter and Materials Physics, 58(6), 3212-3217.
https://doi.org/10.1103/PhysRevB.58.3212

Antić B, Mitrić M, Rodić D, Zhong Y, Artemov Y, Bogdanović S, Friedman JR. Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3. in Physical Review B: Condensed Matter and Materials Physics. 1998;58(6):3212-3217.
doi:10.1103/PhysRevB.58.3212 .

Antić, Bratislav, Mitrić, Miodrag, Rodić, Dubravko, Zhong, Yicheng, Artemov, Y., Bogdanović, Stefan, Friedman, Jonathan R., "Magnetic properties of diluted magnetic (Gd,Lu)(2)O-3" in Physical Review B: Condensed Matter and Materials Physics, 58, no. 6 (1998):3212-3217,
https://doi.org/10.1103/PhysRevB.58.3212 . .

TY  - JOUR
AU  - Rodić, Dubravko
AU  - Antić, Bratislav
AU  - Tellgren, Rolland
AU  - Rundlof, H.
AU  - Blanuša, Jovan
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2158
AB  - In order to obtain information about the magnetic moment of CuCr2Se4 and the changes in the Curie point, we have investigated the magnetic structure and the temperature dependance of the magnetic susceptibility. Neutron diffraction experiments were done on the powder of a CuCr2Se4, sample both at 10 K and at 295 K. The magnetic measurements were done in the temperature range 295-720 K. CuCr2Se4. which crystallizes in the normal spinel structure, is a collinear ferromagnetic. The obtained magnetic moment mu(Cr) = 2.81 mu(B) (at 10 K) and the interatomic distances indicate that in the ferromagnetic phase chromium is in the oxidation state between + 3 and + 4. On the other hand, the effective magnetic moment mu(eff)(Cr) = 4.4 mu(B), obtained from the susceptibility measurements in the paramagnetic phase, corresponds to chromium in an oxidation state between +2 and + 3. The spin value. assuming a quenched moment, is S = 1.40 and S = 1.75 in the ferromagnetic and in the paramagnetic phase, respectively. At the Curie point; T-c = 450 K, the phase transition of the first order with the change of magnetic moment and valence of the chromium ion rakes place. (c) 1998 Elsevier Science B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - A change of magnetic moment of Cr ion with the magnetic phase transition in CuCr2Se4
VL  - 187
IS  - 1
SP  - 88
EP  - 92
DO  - 10.1016/S0304-8853(98)00106-1
ER  - 

@article{
author = "Rodić, Dubravko and Antić, Bratislav and Tellgren, Rolland and Rundlof, H. and Blanuša, Jovan",
year = "1998",
abstract = "In order to obtain information about the magnetic moment of CuCr2Se4 and the changes in the Curie point, we have investigated the magnetic structure and the temperature dependance of the magnetic susceptibility. Neutron diffraction experiments were done on the powder of a CuCr2Se4, sample both at 10 K and at 295 K. The magnetic measurements were done in the temperature range 295-720 K. CuCr2Se4. which crystallizes in the normal spinel structure, is a collinear ferromagnetic. The obtained magnetic moment mu(Cr) = 2.81 mu(B) (at 10 K) and the interatomic distances indicate that in the ferromagnetic phase chromium is in the oxidation state between + 3 and + 4. On the other hand, the effective magnetic moment mu(eff)(Cr) = 4.4 mu(B), obtained from the susceptibility measurements in the paramagnetic phase, corresponds to chromium in an oxidation state between +2 and + 3. The spin value. assuming a quenched moment, is S = 1.40 and S = 1.75 in the ferromagnetic and in the paramagnetic phase, respectively. At the Curie point; T-c = 450 K, the phase transition of the first order with the change of magnetic moment and valence of the chromium ion rakes place. (c) 1998 Elsevier Science B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "A change of magnetic moment of Cr ion with the magnetic phase transition in CuCr2Se4",
volume = "187",
number = "1",
pages = "88-92",
doi = "10.1016/S0304-8853(98)00106-1"
}

Rodić, D., Antić, B., Tellgren, R., Rundlof, H.,& Blanuša, J.. (1998). A change of magnetic moment of Cr ion with the magnetic phase transition in CuCr2Se4. in Journal of Magnetism and Magnetic Materials, 187(1), 88-92.
https://doi.org/10.1016/S0304-8853(98)00106-1

Rodić D, Antić B, Tellgren R, Rundlof H, Blanuša J. A change of magnetic moment of Cr ion with the magnetic phase transition in CuCr2Se4. in Journal of Magnetism and Magnetic Materials. 1998;187(1):88-92.
doi:10.1016/S0304-8853(98)00106-1 .

Rodić, Dubravko, Antić, Bratislav, Tellgren, Rolland, Rundlof, H., Blanuša, Jovan, "A change of magnetic moment of Cr ion with the magnetic phase transition in CuCr2Se4" in Journal of Magnetism and Magnetic Materials, 187, no. 1 (1998):88-92,
https://doi.org/10.1016/S0304-8853(98)00106-1 . .

TY  - JOUR
AU  - Mitrić, Miodrag
AU  - Antić, Bratislav
AU  - Balanda, Maria
AU  - Rodić, Dubravko
AU  - Napijalo, Milan Lj.
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2065
AB  - Polycrystalline samples of the new semimagnetic semiconductor YbxY2-xO3 (x = 0.06, 0.12, 0.25, 0.39, 1.00, 1.40, 1.80) were obtained by ceramic technology. An x-ray diffraction experiment was performed on all of the samples at room temperature. These data provided the basis for Rietveld refinements. The refinements showed that Yb3+ ions preferentially occupy the 24d position. The lattice constants and the mean cation-anion distances decrease linearly with the Yb3+-ion concentration. The inverse magnetic susceptibilities for all of the samples depend linearly on the temperature for 4 K LT T LT 30 K. In this region only the lowest Kramers doublet is populated, and for that level the effective magnetic quantum number M-1eff. is deduced. The Curie-Weiss paramagnetic temperatures theta(x) obtained from the low-temperature region depend linearly on the concentration x. Over the whole experimental region 4 K LT T LT 250 K, the magnetic susceptibility deviates from the Curie-Weiss law, and its calculation requires inclusion of the first excited Kramers doubler. The effective magnetic quantum number M-2eff and energy gap Delta W of the first excited doublet were deduced.
T2  - Journal of Physics: Condensed Matter
T1  - An x-ray diffraction and magnetic susceptibility study of YbxY2-xO3
VL  - 9
IS  - 20
SP  - 4103
EP  - 4111
DO  - 10.1088/0953-8984/9/20/009
ER  - 

@article{
author = "Mitrić, Miodrag and Antić, Bratislav and Balanda, Maria and Rodić, Dubravko and Napijalo, Milan Lj.",
year = "1997",
abstract = "Polycrystalline samples of the new semimagnetic semiconductor YbxY2-xO3 (x = 0.06, 0.12, 0.25, 0.39, 1.00, 1.40, 1.80) were obtained by ceramic technology. An x-ray diffraction experiment was performed on all of the samples at room temperature. These data provided the basis for Rietveld refinements. The refinements showed that Yb3+ ions preferentially occupy the 24d position. The lattice constants and the mean cation-anion distances decrease linearly with the Yb3+-ion concentration. The inverse magnetic susceptibilities for all of the samples depend linearly on the temperature for 4 K LT T LT 30 K. In this region only the lowest Kramers doublet is populated, and for that level the effective magnetic quantum number M-1eff. is deduced. The Curie-Weiss paramagnetic temperatures theta(x) obtained from the low-temperature region depend linearly on the concentration x. Over the whole experimental region 4 K LT T LT 250 K, the magnetic susceptibility deviates from the Curie-Weiss law, and its calculation requires inclusion of the first excited Kramers doubler. The effective magnetic quantum number M-2eff and energy gap Delta W of the first excited doublet were deduced.",
journal = "Journal of Physics: Condensed Matter",
title = "An x-ray diffraction and magnetic susceptibility study of YbxY2-xO3",
volume = "9",
number = "20",
pages = "4103-4111",
doi = "10.1088/0953-8984/9/20/009"
}

Mitrić, M., Antić, B., Balanda, M., Rodić, D.,& Napijalo, M. Lj.. (1997). An x-ray diffraction and magnetic susceptibility study of YbxY2-xO3. in Journal of Physics: Condensed Matter, 9(20), 4103-4111.
https://doi.org/10.1088/0953-8984/9/20/009

Mitrić M, Antić B, Balanda M, Rodić D, Napijalo ML. An x-ray diffraction and magnetic susceptibility study of YbxY2-xO3. in Journal of Physics: Condensed Matter. 1997;9(20):4103-4111.
doi:10.1088/0953-8984/9/20/009 .

Mitrić, Miodrag, Antić, Bratislav, Balanda, Maria, Rodić, Dubravko, Napijalo, Milan Lj., "An x-ray diffraction and magnetic susceptibility study of YbxY2-xO3" in Journal of Physics: Condensed Matter, 9, no. 20 (1997):4103-4111,
https://doi.org/10.1088/0953-8984/9/20/009 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Mitrić, Miodrag
AU  - Rodić, Dubravko
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2052
AB  - Mixed sesquioxides Y2-xEuxO3 (x = 0.10, 0.20, 0.60, 1.00, 1.60 and 1.80) in the cubic (C) phase were obtained by precipitation and subsequent sintering. Cubic Eu2O3 and Y0.20Eu1.80O3 were transformed into monoclinic (B) phases at 1400 K and 1600 K respectively. The transformation is reconstructive in character. All of the structures were refined using the Rietveld powder method, and the Eu3+ ions found to be randomly distributed. The molar magnetic susceptibilities at room temperature exceed the free-ion values, and are almost independent of the concentration for x greater than or equal to 0.60. For x less than or equal to 0.20, the susceptibilities decrease with decreasing concentration of the magnetic ion Eu3+. This behaviour is attributed to crystal-field and anisotropic exchange effects.
T2  - Journal of Physics: Condensed Matter
T1  - Cation ordering in cubic and monoclinic (Y,Eu)(2)O-3: An x-ray powder diffraction and magnetic susceptibility study
VL  - 9
IS  - 2
SP  - 365
EP  - 374
DO  - 10.1088/0953-8984/9/2/004
ER  - 

@article{
author = "Antić, Bratislav and Mitrić, Miodrag and Rodić, Dubravko",
year = "1997",
abstract = "Mixed sesquioxides Y2-xEuxO3 (x = 0.10, 0.20, 0.60, 1.00, 1.60 and 1.80) in the cubic (C) phase were obtained by precipitation and subsequent sintering. Cubic Eu2O3 and Y0.20Eu1.80O3 were transformed into monoclinic (B) phases at 1400 K and 1600 K respectively. The transformation is reconstructive in character. All of the structures were refined using the Rietveld powder method, and the Eu3+ ions found to be randomly distributed. The molar magnetic susceptibilities at room temperature exceed the free-ion values, and are almost independent of the concentration for x greater than or equal to 0.60. For x less than or equal to 0.20, the susceptibilities decrease with decreasing concentration of the magnetic ion Eu3+. This behaviour is attributed to crystal-field and anisotropic exchange effects.",
journal = "Journal of Physics: Condensed Matter",
title = "Cation ordering in cubic and monoclinic (Y,Eu)(2)O-3: An x-ray powder diffraction and magnetic susceptibility study",
volume = "9",
number = "2",
pages = "365-374",
doi = "10.1088/0953-8984/9/2/004"
}

Antić, B., Mitrić, M.,& Rodić, D.. (1997). Cation ordering in cubic and monoclinic (Y,Eu)(2)O-3: An x-ray powder diffraction and magnetic susceptibility study. in Journal of Physics: Condensed Matter, 9(2), 365-374.
https://doi.org/10.1088/0953-8984/9/2/004

Antić B, Mitrić M, Rodić D. Cation ordering in cubic and monoclinic (Y,Eu)(2)O-3: An x-ray powder diffraction and magnetic susceptibility study. in Journal of Physics: Condensed Matter. 1997;9(2):365-374.
doi:10.1088/0953-8984/9/2/004 .

Antić, Bratislav, Mitrić, Miodrag, Rodić, Dubravko, "Cation ordering in cubic and monoclinic (Y,Eu)(2)O-3: An x-ray powder diffraction and magnetic susceptibility study" in Journal of Physics: Condensed Matter, 9, no. 2 (1997):365-374,
https://doi.org/10.1088/0953-8984/9/2/004 . .

TY  - JOUR
AU  - Mitrić, Miodrag
AU  - Kremenović, Aleksandar S.
AU  - Dimitrijevic, R
AU  - Rodić, Dubravko
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6227
AB  - SmxY2-xO3 solid solutions are semimagnetic semiconducting materials with wide energy gaps. Magnetic properties of these materials are coupled with their structural and microstructural parameters. Evidently, it is of interest to investigate these parameters in order to explain magnetic properties of diluted magnets. All mixed sesquioxides SmxY2-xO3 (x = 0.2, 0.5, 0.7, 1.0, 1.4 and 1.7) crystallize in C-M2O3 crystal type in space group Ia3 with Y3+ and Sm3+ cations in 24(d) and 8(b) Wyckoff positions, respectively. The X-ray diffraction data were used to establish the distribution of magnetic ions over crystallographic positions 8(b) and 24(d). A random distribution was found. The same data were used for evaluation of the crystal size, microstrain and paracrystallinity. The concentration dependence of these values was concluded. Results show that unit cell parameters obey Vegards rule, That fact leads to indirect information about well mixing of Y2O3 and Sm2O3. Agreement of the unit cell parameters with Vegards rule is connected with the difference between cationic radii and electronegativity, The Sm3+-O2--Sm3+ bond geometry, important for the superexchange interaction, strongly depends on Sm3+ concentration. By comparing difference of unit cell parameters of the constitutive components Y2O3 and Sm2O3 and values of microstrains of their solid solutions it can be concluded that clusters are randomly formed.
T2  - Solid State Ionics
T1  - Structure and microstructure of SmxY2-xO3
VL  - 101
SP  - 495
EP  - 501
DO  - 10.1016/S0167-2738(97)00150-1
ER  - 

@article{
author = "Mitrić, Miodrag and Kremenović, Aleksandar S. and Dimitrijevic, R and Rodić, Dubravko",
year = "1997",
abstract = "SmxY2-xO3 solid solutions are semimagnetic semiconducting materials with wide energy gaps. Magnetic properties of these materials are coupled with their structural and microstructural parameters. Evidently, it is of interest to investigate these parameters in order to explain magnetic properties of diluted magnets. All mixed sesquioxides SmxY2-xO3 (x = 0.2, 0.5, 0.7, 1.0, 1.4 and 1.7) crystallize in C-M2O3 crystal type in space group Ia3 with Y3+ and Sm3+ cations in 24(d) and 8(b) Wyckoff positions, respectively. The X-ray diffraction data were used to establish the distribution of magnetic ions over crystallographic positions 8(b) and 24(d). A random distribution was found. The same data were used for evaluation of the crystal size, microstrain and paracrystallinity. The concentration dependence of these values was concluded. Results show that unit cell parameters obey Vegards rule, That fact leads to indirect information about well mixing of Y2O3 and Sm2O3. Agreement of the unit cell parameters with Vegards rule is connected with the difference between cationic radii and electronegativity, The Sm3+-O2--Sm3+ bond geometry, important for the superexchange interaction, strongly depends on Sm3+ concentration. By comparing difference of unit cell parameters of the constitutive components Y2O3 and Sm2O3 and values of microstrains of their solid solutions it can be concluded that clusters are randomly formed.",
journal = "Solid State Ionics",
title = "Structure and microstructure of SmxY2-xO3",
volume = "101",
pages = "495-501",
doi = "10.1016/S0167-2738(97)00150-1"
}

Mitrić, M., Kremenović, A. S., Dimitrijevic, R.,& Rodić, D.. (1997). Structure and microstructure of SmxY2-xO3. in Solid State Ionics, 101, 495-501.
https://doi.org/10.1016/S0167-2738(97)00150-1

Mitrić M, Kremenović AS, Dimitrijevic R, Rodić D. Structure and microstructure of SmxY2-xO3. in Solid State Ionics. 1997;101:495-501.
doi:10.1016/S0167-2738(97)00150-1 .

Mitrić, Miodrag, Kremenović, Aleksandar S., Dimitrijevic, R, Rodić, Dubravko, "Structure and microstructure of SmxY2-xO3" in Solid State Ionics, 101 (1997):495-501,
https://doi.org/10.1016/S0167-2738(97)00150-1 . .

TY  - JOUR
AU  - Ilić, A.
AU  - Antić, Bratislav
AU  - Poleti, Dejan
AU  - Rodić, Dubravko
AU  - Petrović-Prelević, Irena
AU  - Karanović, Ljiljana
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1973
AB  - The series of spinels Zn2.33-xCoxSb0.67O4 (0.23 less than or equal to x less than or equal to 2.33) was prepared by ceramic technology. The crystal structures were refined from the x-ray diffraction data using the Rietveld profile method. The high-temperature magnetic susceptibility was measured by the Faraday method in the temperature range 290-600 K and the data were fitted to the Curie-Weiss law. The cation distribution in these diluted magnetics is obtained from x-ray diffraction and high-temperature magnetic susceptibility measurements. It was found that, for x less than or equal to 0.93 Co2+, ions occupy exclusively the octahedral position in the spinel type of structure. In the low-concentration region a strong clustering of magnetic ions is observed. In the range 1.33 less than or equal to x less than or equal to 2.33, Co2+ ions are distributed in both tetrahedral and octahedral cationic sites. The Curie-Weiss paramagnetic temperature Theta is negative in the whole range of concentrations, as the consequence of a predominant antiferromagnetic interaction. The appearance of the Co2+ ions in tetrahedral sites (around x = 1.33) leads to a drop in the absolute Theta-value. The effective magnetic moments of Co2+ ions are about 4.60(mu B) for x less than or equal to 1.33 and depend on the Co2+ concentration for x GT 1.33.
T2  - Journal of Physics: Condensed Matter
T1  - Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels
VL  - 8
IS  - 14
SP  - 2317
EP  - 2325
DO  - 10.1088/0953-8984/8/14/008
ER  - 

@article{
author = "Ilić, A. and Antić, Bratislav and Poleti, Dejan and Rodić, Dubravko and Petrović-Prelević, Irena and Karanović, Ljiljana",
year = "1996",
abstract = "The series of spinels Zn2.33-xCoxSb0.67O4 (0.23 less than or equal to x less than or equal to 2.33) was prepared by ceramic technology. The crystal structures were refined from the x-ray diffraction data using the Rietveld profile method. The high-temperature magnetic susceptibility was measured by the Faraday method in the temperature range 290-600 K and the data were fitted to the Curie-Weiss law. The cation distribution in these diluted magnetics is obtained from x-ray diffraction and high-temperature magnetic susceptibility measurements. It was found that, for x less than or equal to 0.93 Co2+, ions occupy exclusively the octahedral position in the spinel type of structure. In the low-concentration region a strong clustering of magnetic ions is observed. In the range 1.33 less than or equal to x less than or equal to 2.33, Co2+ ions are distributed in both tetrahedral and octahedral cationic sites. The Curie-Weiss paramagnetic temperature Theta is negative in the whole range of concentrations, as the consequence of a predominant antiferromagnetic interaction. The appearance of the Co2+ ions in tetrahedral sites (around x = 1.33) leads to a drop in the absolute Theta-value. The effective magnetic moments of Co2+ ions are about 4.60(mu B) for x less than or equal to 1.33 and depend on the Co2+ concentration for x GT 1.33.",
journal = "Journal of Physics: Condensed Matter",
title = "Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels",
volume = "8",
number = "14",
pages = "2317-2325",
doi = "10.1088/0953-8984/8/14/008"
}

Ilić, A., Antić, B., Poleti, D., Rodić, D., Petrović-Prelević, I.,& Karanović, L.. (1996). Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels. in Journal of Physics: Condensed Matter, 8(14), 2317-2325.
https://doi.org/10.1088/0953-8984/8/14/008

Ilić A, Antić B, Poleti D, Rodić D, Petrović-Prelević I, Karanović L. Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels. in Journal of Physics: Condensed Matter. 1996;8(14):2317-2325.
doi:10.1088/0953-8984/8/14/008 .

Ilić, A., Antić, Bratislav, Poleti, Dejan, Rodić, Dubravko, Petrović-Prelević, Irena, Karanović, Ljiljana, "Cation distribution and magnetic properties of ternary Zn2.33-xCO2Sb0.67O4 spinels" in Journal of Physics: Condensed Matter, 8, no. 14 (1996):2317-2325,
https://doi.org/10.1088/0953-8984/8/14/008 . .

TY  - JOUR
AU  - Rodić, Dubravko
AU  - Spasojević, Vojislav
AU  - Bajorek, A.
AU  - Onnerud, Per
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1959
AB  - We report the structural parameters and their variation with manganese concentration for the diluted magnetic semiconductors Hg1-xMnxS (x less than or equal to 0.33) and Cd1-xMnxS (x less than or equal to 0.43), as obtained by X-ray powder diffraction. Hg1-xMnxS crystallizes in the zincblende type. Cd1-xMnxS crystallizes in wurtzite cell type, and for the sample with x = 0.43, a difference was found between the fractional coordinates of Cd and Mn atoms. The lattice constants, cation-cation distances and bond lengths show linear dependences on concentration. For the same anion, the volumes of the unit cell versus the volumes of cations lie on the same straight line for both zincblende and wurtzite types. A pressure of 1.8 GPa applied to HgS and Hg0.95Mn0.05S induces a phase transition from the zincblende to cinnabar structure type. The consequences for the magnetic properties are discussed.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Similarity of structure properties of Hg1-xMnxS and Cd1-xMnxS (structure properties of HgMnS and CdMnS)
VL  - 152
IS  - 1-2
SP  - 159
EP  - 164
DO  - 10.1016/0304-8853(95)00435-1
ER  - 

@article{
author = "Rodić, Dubravko and Spasojević, Vojislav and Bajorek, A. and Onnerud, Per",
year = "1996",
abstract = "We report the structural parameters and their variation with manganese concentration for the diluted magnetic semiconductors Hg1-xMnxS (x less than or equal to 0.33) and Cd1-xMnxS (x less than or equal to 0.43), as obtained by X-ray powder diffraction. Hg1-xMnxS crystallizes in the zincblende type. Cd1-xMnxS crystallizes in wurtzite cell type, and for the sample with x = 0.43, a difference was found between the fractional coordinates of Cd and Mn atoms. The lattice constants, cation-cation distances and bond lengths show linear dependences on concentration. For the same anion, the volumes of the unit cell versus the volumes of cations lie on the same straight line for both zincblende and wurtzite types. A pressure of 1.8 GPa applied to HgS and Hg0.95Mn0.05S induces a phase transition from the zincblende to cinnabar structure type. The consequences for the magnetic properties are discussed.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Similarity of structure properties of Hg1-xMnxS and Cd1-xMnxS (structure properties of HgMnS and CdMnS)",
volume = "152",
number = "1-2",
pages = "159-164",
doi = "10.1016/0304-8853(95)00435-1"
}

Rodić, D., Spasojević, V., Bajorek, A.,& Onnerud, P.. (1996). Similarity of structure properties of Hg1-xMnxS and Cd1-xMnxS (structure properties of HgMnS and CdMnS). in Journal of Magnetism and Magnetic Materials, 152(1-2), 159-164.
https://doi.org/10.1016/0304-8853(95)00435-1

Rodić D, Spasojević V, Bajorek A, Onnerud P. Similarity of structure properties of Hg1-xMnxS and Cd1-xMnxS (structure properties of HgMnS and CdMnS). in Journal of Magnetism and Magnetic Materials. 1996;152(1-2):159-164.
doi:10.1016/0304-8853(95)00435-1 .

Rodić, Dubravko, Spasojević, Vojislav, Bajorek, A., Onnerud, Per, "Similarity of structure properties of Hg1-xMnxS and Cd1-xMnxS (structure properties of HgMnS and CdMnS)" in Journal of Magnetism and Magnetic Materials, 152, no. 1-2 (1996):159-164,
https://doi.org/10.1016/0304-8853(95)00435-1 . .