Strukturne i magnetne osobine nanočestičnih i polikristalnih oksida retkih zemalja i 3d metala.

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Strukturne i magnetne osobine nanočestičnih i polikristalnih oksida retkih zemalja i 3d metala. (en)
Структурнe и магнетне особине наночестичних и поликристалних оксида ретких земаља и 3d метала. (sr)
Strukturne i magnetne osobine nanočestičnih i polikristalnih oksida retkih zemalja i 3d metala. (sr_RS)
Authors

Publications

Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation

Kurko, Sandra V.; Matović, Ljiljana; Novaković, Nikola; Nenadović, Snežana S.; Jovanović, Zoran M.; Ivanović, Nenad; Grbović-Novaković, Jasmina

(2010)

TY  - JOUR
AU  - Kurko, Sandra V.
AU  - Matović, Ljiljana
AU  - Novaković, Nikola
AU  - Nenadović, Snežana S.
AU  - Jovanović, Zoran M.
AU  - Ivanović, Nenad
AU  - Grbović-Novaković, Jasmina
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4054
AB  - Changes in structural and hydrogen desorption properties of MgH2 induced by ion irradiation have been investigated. Powder samples of MgH2 have been irradiated with 45 keV B3+ and 120 keV Ar8+, with ion fluence of 10(15) ions/cm(2). The effects of ion irradiation are estimated by Monte Carlo numerical calculations using the Stoping and Range of Ions in Matter (SRIM) package. The induced material modifications and their consequences on hydrogen dynamics in the system are investigated by XRD, particle size distribution and TPD techniques. Changes of TPD spectra with irradiation conditions suggest that there are several mechanisms involved in desorption process which depend on defect concentration and their interaction and ordering. The results confirmed that the near-surface area of MgH2 and formation of a substoichiometric MgHx (x LT 2) play a crucial role in hydrogen kinetics and that various concentrations of induced defects substantially influence H diffusion and desorption kinetics in MgH2. The results also confirm that there is possibility to control the thermodynamic parameters by controlling vacancies concentration in the system.
T2  - Hemijska industrija
T1  - Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation
VL  - 64
IS  - 3
SP  - 227
EP  - 232
DO  - 10.2298/HEMIND091221034K
ER  - 
@article{
author = "Kurko, Sandra V. and Matović, Ljiljana and Novaković, Nikola and Nenadović, Snežana S. and Jovanović, Zoran M. and Ivanović, Nenad and Grbović-Novaković, Jasmina",
year = "2010",
abstract = "Changes in structural and hydrogen desorption properties of MgH2 induced by ion irradiation have been investigated. Powder samples of MgH2 have been irradiated with 45 keV B3+ and 120 keV Ar8+, with ion fluence of 10(15) ions/cm(2). The effects of ion irradiation are estimated by Monte Carlo numerical calculations using the Stoping and Range of Ions in Matter (SRIM) package. The induced material modifications and their consequences on hydrogen dynamics in the system are investigated by XRD, particle size distribution and TPD techniques. Changes of TPD spectra with irradiation conditions suggest that there are several mechanisms involved in desorption process which depend on defect concentration and their interaction and ordering. The results confirmed that the near-surface area of MgH2 and formation of a substoichiometric MgHx (x LT 2) play a crucial role in hydrogen kinetics and that various concentrations of induced defects substantially influence H diffusion and desorption kinetics in MgH2. The results also confirm that there is possibility to control the thermodynamic parameters by controlling vacancies concentration in the system.",
journal = "Hemijska industrija",
title = "Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation",
volume = "64",
number = "3",
pages = "227-232",
doi = "10.2298/HEMIND091221034K"
}
Kurko, S. V., Matović, L., Novaković, N., Nenadović, S. S., Jovanović, Z. M., Ivanović, N.,& Grbović-Novaković, J.. (2010). Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation. in Hemijska industrija, 64(3), 227-232.
https://doi.org/10.2298/HEMIND091221034K
Kurko SV, Matović L, Novaković N, Nenadović SS, Jovanović ZM, Ivanović N, Grbović-Novaković J. Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation. in Hemijska industrija. 2010;64(3):227-232.
doi:10.2298/HEMIND091221034K .
Kurko, Sandra V., Matović, Ljiljana, Novaković, Nikola, Nenadović, Snežana S., Jovanović, Zoran M., Ivanović, Nenad, Grbović-Novaković, Jasmina, "Changes of Structural and Hydrogen Desorption Properties of Mgh2 Induced By Ion Irradiation" in Hemijska industrija, 64, no. 3 (2010):227-232,
https://doi.org/10.2298/HEMIND091221034K . .

Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure

Kusigerski, Vladan; Perović, Marija M.; Mraković, Ana Đ.; Blanuša, Jovan; Mihalik, M.; Zentkova, M.; Spasojević, Vojislav

(2010)

TY  - JOUR
AU  - Kusigerski, Vladan
AU  - Perović, Marija M.
AU  - Mraković, Ana Đ.
AU  - Blanuša, Jovan
AU  - Mihalik, M.
AU  - Zentkova, M.
AU  - Spasojević, Vojislav
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6895
AB  - Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 with the average particle size of 10 nm was mechanochemically synthesized in the single-step procedure Temperature and field dependences of magnetization were recorded under both ambient and applied hydrostatic pressure up to 0 47 GPa At ambient pressure, two magnetic transition points were observed one of the spin-glass like type at the temperature T-f approximate to 34 K, and ferro-to-paramagnet transition at T-C approximate to 51 K Under the applied pressure magnetic parameters gradually changed (i) both T-C and T-f were lowered with the increase in pressure, (ii) both high field magnetization M-5T and remanent magnetization M-Rem decreased with pressure, (iii) coercivity H increased with pressure The obtained results show that magnetism of a nanoparticle system with high degree of Intrinsic disorder diminishes with the applied pressure that is in compliance with the effect of the increased cationic disorder (internal pressure) in bulk manganites
T2  - Acta Physica Polonica A
T1  - Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure
VL  - 118
IS  - 5
SP  - 811
EP  - 812
DO  - 10.12693/APhysPolA.118.811
ER  - 
@article{
author = "Kusigerski, Vladan and Perović, Marija M. and Mraković, Ana Đ. and Blanuša, Jovan and Mihalik, M. and Zentkova, M. and Spasojević, Vojislav",
year = "2010",
abstract = "Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 with the average particle size of 10 nm was mechanochemically synthesized in the single-step procedure Temperature and field dependences of magnetization were recorded under both ambient and applied hydrostatic pressure up to 0 47 GPa At ambient pressure, two magnetic transition points were observed one of the spin-glass like type at the temperature T-f approximate to 34 K, and ferro-to-paramagnet transition at T-C approximate to 51 K Under the applied pressure magnetic parameters gradually changed (i) both T-C and T-f were lowered with the increase in pressure, (ii) both high field magnetization M-5T and remanent magnetization M-Rem decreased with pressure, (iii) coercivity H increased with pressure The obtained results show that magnetism of a nanoparticle system with high degree of Intrinsic disorder diminishes with the applied pressure that is in compliance with the effect of the increased cationic disorder (internal pressure) in bulk manganites",
journal = "Acta Physica Polonica A",
title = "Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure",
volume = "118",
number = "5",
pages = "811-812",
doi = "10.12693/APhysPolA.118.811"
}
Kusigerski, V., Perović, M. M., Mraković, A. Đ., Blanuša, J., Mihalik, M., Zentkova, M.,& Spasojević, V.. (2010). Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure. in Acta Physica Polonica A, 118(5), 811-812.
https://doi.org/10.12693/APhysPolA.118.811
Kusigerski V, Perović MM, Mraković AĐ, Blanuša J, Mihalik M, Zentkova M, Spasojević V. Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure. in Acta Physica Polonica A. 2010;118(5):811-812.
doi:10.12693/APhysPolA.118.811 .
Kusigerski, Vladan, Perović, Marija M., Mraković, Ana Đ., Blanuša, Jovan, Mihalik, M., Zentkova, M., Spasojević, Vojislav, "Magnetism of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 under Applied Hydrostatic Pressure" in Acta Physica Polonica A, 118, no. 5 (2010):811-812,
https://doi.org/10.12693/APhysPolA.118.811 . .
1
1
1

Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling

Perović, Marija M.; Mraković, Ana Đ.; Kusigerski, Vladan; Blanuša, Jovan; Spasojević, Vojislav

(2010)

TY  - JOUR
AU  - Perović, Marija M.
AU  - Mraković, Ana Đ.
AU  - Kusigerski, Vladan
AU  - Blanuša, Jovan
AU  - Spasojević, Vojislav
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6896
AB  - Spin dynamics of nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 system was studied through the set of diverse magnetic measurements Analysis of the data obtained from magnetic relaxation measurements, memory effect and AC susceptibility experiments pointed to a spin glass like behavior of interacting nanoparticle system
T2  - Acta Physica Polonica A
T1  - Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling
VL  - 118
IS  - 5
SP  - 813
EP  - 814
DO  - 10.12693/APhysPolA.118.813
ER  - 
@article{
author = "Perović, Marija M. and Mraković, Ana Đ. and Kusigerski, Vladan and Blanuša, Jovan and Spasojević, Vojislav",
year = "2010",
abstract = "Spin dynamics of nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 system was studied through the set of diverse magnetic measurements Analysis of the data obtained from magnetic relaxation measurements, memory effect and AC susceptibility experiments pointed to a spin glass like behavior of interacting nanoparticle system",
journal = "Acta Physica Polonica A",
title = "Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling",
volume = "118",
number = "5",
pages = "813-814",
doi = "10.12693/APhysPolA.118.813"
}
Perović, M. M., Mraković, A. Đ., Kusigerski, V., Blanuša, J.,& Spasojević, V.. (2010). Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling. in Acta Physica Polonica A, 118(5), 813-814.
https://doi.org/10.12693/APhysPolA.118.813
Perović MM, Mraković AĐ, Kusigerski V, Blanuša J, Spasojević V. Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling. in Acta Physica Polonica A. 2010;118(5):813-814.
doi:10.12693/APhysPolA.118.813 .
Perović, Marija M., Mraković, Ana Đ., Kusigerski, Vladan, Blanuša, Jovan, Spasojević, Vojislav, "Spin Glass Dynamics of Nanoparticle La0 7Ca0 3Mn0 7Fe0 3O3 Obtained by a Mechanochemical Milling" in Acta Physica Polonica A, 118, no. 5 (2010):813-814,
https://doi.org/10.12693/APhysPolA.118.813 . .
2
1
2

Ferromagnetic behaviour of the Zn-Mn-O system

Babić-Stojić, Branka S.; Milivojević, Dušan; Blanuša, Jovan

(2009)

TY  - JOUR
AU  - Babić-Stojić, Branka S.
AU  - Milivojević, Dušan
AU  - Blanuša, Jovan
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3628
AB  - Polycrystalline Zn-Mn-O samples with nominal manganese concentrations x = 0.0 1, 0.04 and 0.10 were synthesized by a solid state reaction route using (ZnC(2)O(4 center dot)2H(2)O)(1-x) and (MnC(2)O(4)-2H(2)O)(x). Thermal treatment of the samples was performed in air at temperatures 673, 773, 873, 973 and 1173 K for x = 0.01 and at the temperature 773 K for x = 0.04 and 0.10. The samples were investigated by X-ray diffraction, thermogravimetry, differential thermal analysis, transmission electron microscopy, magnetization measurements and electron paramagnetic resonance. X-Ray diffraction was also performed on MnO(2) thermally treated at temperatures 673, 773, 873, 973, 1073 and 1173 K. Room temperature ferromagnetism was observed in the Zn-Mn-O samples with x = 0.0 1 thermally treated at low temperatures (673 and 773 K) and in the sample with x = 0.04 thermally treated at 773 K. It seems that the ferromagnetic phase could originate from interactions between Mn(2+) and acceptor defects incorporated in the ZnO crystal lattice during the thermal treatment of the samples.
T2  - Journal of the Serbian Chemical Society
T1  - Ferromagnetic behaviour of the Zn-Mn-O system
VL  - 74
IS  - 1
SP  - 71
EP  - 84
DO  - 10.2298/JSC0901071B
ER  - 
@article{
author = "Babić-Stojić, Branka S. and Milivojević, Dušan and Blanuša, Jovan",
year = "2009",
abstract = "Polycrystalline Zn-Mn-O samples with nominal manganese concentrations x = 0.0 1, 0.04 and 0.10 were synthesized by a solid state reaction route using (ZnC(2)O(4 center dot)2H(2)O)(1-x) and (MnC(2)O(4)-2H(2)O)(x). Thermal treatment of the samples was performed in air at temperatures 673, 773, 873, 973 and 1173 K for x = 0.01 and at the temperature 773 K for x = 0.04 and 0.10. The samples were investigated by X-ray diffraction, thermogravimetry, differential thermal analysis, transmission electron microscopy, magnetization measurements and electron paramagnetic resonance. X-Ray diffraction was also performed on MnO(2) thermally treated at temperatures 673, 773, 873, 973, 1073 and 1173 K. Room temperature ferromagnetism was observed in the Zn-Mn-O samples with x = 0.0 1 thermally treated at low temperatures (673 and 773 K) and in the sample with x = 0.04 thermally treated at 773 K. It seems that the ferromagnetic phase could originate from interactions between Mn(2+) and acceptor defects incorporated in the ZnO crystal lattice during the thermal treatment of the samples.",
journal = "Journal of the Serbian Chemical Society",
title = "Ferromagnetic behaviour of the Zn-Mn-O system",
volume = "74",
number = "1",
pages = "71-84",
doi = "10.2298/JSC0901071B"
}
Babić-Stojić, B. S., Milivojević, D.,& Blanuša, J.. (2009). Ferromagnetic behaviour of the Zn-Mn-O system. in Journal of the Serbian Chemical Society, 74(1), 71-84.
https://doi.org/10.2298/JSC0901071B
Babić-Stojić BS, Milivojević D, Blanuša J. Ferromagnetic behaviour of the Zn-Mn-O system. in Journal of the Serbian Chemical Society. 2009;74(1):71-84.
doi:10.2298/JSC0901071B .
Babić-Stojić, Branka S., Milivojević, Dušan, Blanuša, Jovan, "Ferromagnetic behaviour of the Zn-Mn-O system" in Journal of the Serbian Chemical Society, 74, no. 1 (2009):71-84,
https://doi.org/10.2298/JSC0901071B . .
1
1
1

Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita

Tadić, Marin

(Univerzitet u Novom Sadu, Prirodno-matematički fakultet, 2008)

TY  - THES
AU  - Tadić, Marin
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7593
AB  - Cilj rada je sinteza nanokompozitnih uzoraka hematita, maghemita i ε-Fe2O3 i proučavanje njihovih magnetnih osobina. Uzorci su dobijeni sol-gel metodom koristeći tetraetilortosilikat (TEOS) kao prekursor amorfnog silicijum dioksida i gvoţĎe nitrat (Fe(NO3)3·9H2O, Aldrich 98%) kao prekursor feri-oksida. Kontrolišući uslove sinteze dobijeni su nanokompoziti sa različitim strukturama i magnetnim karakteristikama. Karakterizacija uzoraka je izvršena difrakcijom X-zraka, transmisionim elektronskim mikroskopom i SQUID magnetometrom. Ispitivanja DC magnetizacije i AC susceptibilnosti pokazala su tipično ponašanje superparamagnetnih sistema, kao što je postojanje i frekventna zavisnost temperature blokiranja, ireverzibilnost zero-field-cooled (ZFC) i field- cooled (FC) krivih, pojava magnetne histerezisne petlje ispod temperature blokiranja i superparamagnetizam iznad temperature blokiranja. Ispitivani nanokompoziti su pokazali promene u vrednosti koercitativne sile od 0 Oe (hematit i maghemit) do 17000 Oe (ε-Fe2O3), i promene u saturacionoj magnetizaciji od 3,5 emu/g (hematit) do 67 emu/g (maghemit). Nanočestice ε- Fe2O3 faze su direktno dobijene od nanočestica hematita koje su ţarene do temperature od 1050˚C. Razmatrana je uloga meĎučestičnih interakcija na magnetne osobine. Ovi rezultati su vaţni za proučavanja magnetnih osobina nanočestičnih sistema, kao za mnoge industrijske i biomedicinske primene.
AB  - The aim of this work was to synthesize hematite, maghemite and ε-Fe2O3 nanocomposites, and investigate their magnetic properties. The samples were obtained by sol-gel method using tetraethylorthosilicate (TEOS) as precursor of silica, and iron nitrate (Fe(NO3)3·9H2O, Aldrich 98%) as precursor of ferric oxides. By controlling the reaction conditions, it was possible to obtain the nanocomposites with different structural and magnetic properties. Samples were characterized by X-ray powder diffraction, transmission electron microscopy, and SQUID magnetometry. Investigation of the magnetic properties by DC magnetization and AC susceptibility measurements indicated behavior typical of a superparamagnetic systems, such as the existence and frequency dependence of a blocking temperature, irreversibility of the zero-field-cooled (ZFC) and field-cooled (FC) curves, emergence of magnetic hysteresis below the blocking temperature, and suprparamagnetism above the blocking temperature. The nanocomposites showed variation in the coercivity values from 0 Oe (hematite and maghemite) to 17000 Oe (ε-Fe2O3), and variation in the saturation magnetization from 3,5 emu/g (hematite) to 67 emu/g (maghemite). Nanoparticles of ε-Fe2O3 are directly acquired from nanoparticles of hematite by applying heat treatments at increasing temperatures up to 1050˚C. The role of magnetic interparticle interactions on the magnetic properties is discussed. These results are valuable for the study of the magnetic behavior of nanoparticle systems, as well as for use in many industrial and biomedical applications.
PB  - Univerzitet u Novom Sadu, Prirodno-matematički fakultet
T2  - Univerzitet u Novom Sadu
T1  - Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7593
ER  - 
@phdthesis{
author = "Tadić, Marin",
year = "2008",
abstract = "Cilj rada je sinteza nanokompozitnih uzoraka hematita, maghemita i ε-Fe2O3 i proučavanje njihovih magnetnih osobina. Uzorci su dobijeni sol-gel metodom koristeći tetraetilortosilikat (TEOS) kao prekursor amorfnog silicijum dioksida i gvoţĎe nitrat (Fe(NO3)3·9H2O, Aldrich 98%) kao prekursor feri-oksida. Kontrolišući uslove sinteze dobijeni su nanokompoziti sa različitim strukturama i magnetnim karakteristikama. Karakterizacija uzoraka je izvršena difrakcijom X-zraka, transmisionim elektronskim mikroskopom i SQUID magnetometrom. Ispitivanja DC magnetizacije i AC susceptibilnosti pokazala su tipično ponašanje superparamagnetnih sistema, kao što je postojanje i frekventna zavisnost temperature blokiranja, ireverzibilnost zero-field-cooled (ZFC) i field- cooled (FC) krivih, pojava magnetne histerezisne petlje ispod temperature blokiranja i superparamagnetizam iznad temperature blokiranja. Ispitivani nanokompoziti su pokazali promene u vrednosti koercitativne sile od 0 Oe (hematit i maghemit) do 17000 Oe (ε-Fe2O3), i promene u saturacionoj magnetizaciji od 3,5 emu/g (hematit) do 67 emu/g (maghemit). Nanočestice ε- Fe2O3 faze su direktno dobijene od nanočestica hematita koje su ţarene do temperature od 1050˚C. Razmatrana je uloga meĎučestičnih interakcija na magnetne osobine. Ovi rezultati su vaţni za proučavanja magnetnih osobina nanočestičnih sistema, kao za mnoge industrijske i biomedicinske primene., The aim of this work was to synthesize hematite, maghemite and ε-Fe2O3 nanocomposites, and investigate their magnetic properties. The samples were obtained by sol-gel method using tetraethylorthosilicate (TEOS) as precursor of silica, and iron nitrate (Fe(NO3)3·9H2O, Aldrich 98%) as precursor of ferric oxides. By controlling the reaction conditions, it was possible to obtain the nanocomposites with different structural and magnetic properties. Samples were characterized by X-ray powder diffraction, transmission electron microscopy, and SQUID magnetometry. Investigation of the magnetic properties by DC magnetization and AC susceptibility measurements indicated behavior typical of a superparamagnetic systems, such as the existence and frequency dependence of a blocking temperature, irreversibility of the zero-field-cooled (ZFC) and field-cooled (FC) curves, emergence of magnetic hysteresis below the blocking temperature, and suprparamagnetism above the blocking temperature. The nanocomposites showed variation in the coercivity values from 0 Oe (hematite and maghemite) to 17000 Oe (ε-Fe2O3), and variation in the saturation magnetization from 3,5 emu/g (hematite) to 67 emu/g (maghemite). Nanoparticles of ε-Fe2O3 are directly acquired from nanoparticles of hematite by applying heat treatments at increasing temperatures up to 1050˚C. The role of magnetic interparticle interactions on the magnetic properties is discussed. These results are valuable for the study of the magnetic behavior of nanoparticle systems, as well as for use in many industrial and biomedical applications.",
publisher = "Univerzitet u Novom Sadu, Prirodno-matematički fakultet",
journal = "Univerzitet u Novom Sadu",
title = "Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7593"
}
Tadić, M.. (2008). Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita. in Univerzitet u Novom Sadu
Univerzitet u Novom Sadu, Prirodno-matematički fakultet..
https://hdl.handle.net/21.15107/rcub_vinar_7593
Tadić M. Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita. in Univerzitet u Novom Sadu. 2008;.
https://hdl.handle.net/21.15107/rcub_vinar_7593 .
Tadić, Marin, "Sinteza i magnetne osobine α-, γ- i ε- feri-oksidnih nanokompozita" in Univerzitet u Novom Sadu (2008),
https://hdl.handle.net/21.15107/rcub_vinar_7593 .

Ferromagnetic properties of the Zn-Mn-Osystem

Babić-Stojić, Branka S.; Milivojević, Dušan; Blanuša, Jovan; Spasojević, Vojislav; Bibić, Nataša M.; Simonović, Branislav R.

(2008)

TY  - JOUR
AU  - Babić-Stojić, Branka S.
AU  - Milivojević, Dušan
AU  - Blanuša, Jovan
AU  - Spasojević, Vojislav
AU  - Bibić, Nataša M.
AU  - Simonović, Branislav R.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3455
AB  - Polycrystalline Zn -Mn -O samples with nominal manganese concentration x = 0.01 and 0.10 were synthesized by a solid state reaction route using (ZnC(2)O(4) center dot 2H(2)O)(1-x) and (MnC(2)O(4) center dot 2H(2)O)(x). Thermal treatment of the samples was carried out in air at temperatures of 673, 773 and 1173 K. The samples were investigated by x-ray diffraction, thermogravimetry, differential thermal analysis, transmission electron microscopy, magnetization measurements and electron paramagnetic resonance. Room temperature ferromagnetism is observed in Zn -Mn -O samples with x = 0.01 thermally treated at low temperatures (673, 773 K). It seems that the ferromagnetic phase could originate from interactions between Mn(2+) ions and acceptor defects incorporated in the ZnO crystal lattice during the thermal treatment of the samples.
T2  - Journal of Physics: Condensed Matter
T1  - Ferromagnetic properties of the Zn-Mn-Osystem
VL  - 20
IS  - 23
DO  - 10.1088/0953-8984/20/23/235217
ER  - 
@article{
author = "Babić-Stojić, Branka S. and Milivojević, Dušan and Blanuša, Jovan and Spasojević, Vojislav and Bibić, Nataša M. and Simonović, Branislav R.",
year = "2008",
abstract = "Polycrystalline Zn -Mn -O samples with nominal manganese concentration x = 0.01 and 0.10 were synthesized by a solid state reaction route using (ZnC(2)O(4) center dot 2H(2)O)(1-x) and (MnC(2)O(4) center dot 2H(2)O)(x). Thermal treatment of the samples was carried out in air at temperatures of 673, 773 and 1173 K. The samples were investigated by x-ray diffraction, thermogravimetry, differential thermal analysis, transmission electron microscopy, magnetization measurements and electron paramagnetic resonance. Room temperature ferromagnetism is observed in Zn -Mn -O samples with x = 0.01 thermally treated at low temperatures (673, 773 K). It seems that the ferromagnetic phase could originate from interactions between Mn(2+) ions and acceptor defects incorporated in the ZnO crystal lattice during the thermal treatment of the samples.",
journal = "Journal of Physics: Condensed Matter",
title = "Ferromagnetic properties of the Zn-Mn-Osystem",
volume = "20",
number = "23",
doi = "10.1088/0953-8984/20/23/235217"
}
Babić-Stojić, B. S., Milivojević, D., Blanuša, J., Spasojević, V., Bibić, N. M.,& Simonović, B. R.. (2008). Ferromagnetic properties of the Zn-Mn-Osystem. in Journal of Physics: Condensed Matter, 20(23).
https://doi.org/10.1088/0953-8984/20/23/235217
Babić-Stojić BS, Milivojević D, Blanuša J, Spasojević V, Bibić NM, Simonović BR. Ferromagnetic properties of the Zn-Mn-Osystem. in Journal of Physics: Condensed Matter. 2008;20(23).
doi:10.1088/0953-8984/20/23/235217 .
Babić-Stojić, Branka S., Milivojević, Dušan, Blanuša, Jovan, Spasojević, Vojislav, Bibić, Nataša M., Simonović, Branislav R., "Ferromagnetic properties of the Zn-Mn-Osystem" in Journal of Physics: Condensed Matter, 20, no. 23 (2008),
https://doi.org/10.1088/0953-8984/20/23/235217 . .
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Structural and magnetic properties of the Zn-Mn-O system

Milivojević, Dušan; Blanuša, Jovan; Spasojević, Vojislav; Kusigerski, Vladan; Babić-Stojić, Branka S.

(2007)

TY  - CONF
AU  - Milivojević, Dušan
AU  - Blanuša, Jovan
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Babić-Stojić, Branka S.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6678
AB  - Zn-Mn-O semiconductor crystallites with nominal manganese concentration x = 0.01, 0.02, 0.04 and 0.10 were synthesized by a solid state reaction route using oxalate precursors. Thermal treatment procedure was carried out in air at different temperatures in the range 400 - 900 degrees C. The samples were investigated by X-ray diffraction, magnetization measurements and electron paramagnetic resonance. X-ray analysis reveals that dominant crystal phase in the Zn-Mn-O system corresponds to the wurtzite structure of ZnO. Room temperature ferromagnetism, is observed in the Zn-Mn-O samples with lower manganese concentration, x LT = 0.04, thermally treated at low temperature (500 degrees C). Saturation magnetization in the sample with x = 0.01 is found to be 0.05 mu(B)/Mn. The ferromagnetic phase seems to be developed by Zn diffusion into Mn-oxide grains.
C3  - Materials Science Forum
T1  - Structural and magnetic properties of the Zn-Mn-O system
VL  - 555
SP  - 95
EP  - +
DO  - 10.4028/www.scientific.net/MSF.555.95
ER  - 
@conference{
author = "Milivojević, Dušan and Blanuša, Jovan and Spasojević, Vojislav and Kusigerski, Vladan and Babić-Stojić, Branka S.",
year = "2007",
abstract = "Zn-Mn-O semiconductor crystallites with nominal manganese concentration x = 0.01, 0.02, 0.04 and 0.10 were synthesized by a solid state reaction route using oxalate precursors. Thermal treatment procedure was carried out in air at different temperatures in the range 400 - 900 degrees C. The samples were investigated by X-ray diffraction, magnetization measurements and electron paramagnetic resonance. X-ray analysis reveals that dominant crystal phase in the Zn-Mn-O system corresponds to the wurtzite structure of ZnO. Room temperature ferromagnetism, is observed in the Zn-Mn-O samples with lower manganese concentration, x LT = 0.04, thermally treated at low temperature (500 degrees C). Saturation magnetization in the sample with x = 0.01 is found to be 0.05 mu(B)/Mn. The ferromagnetic phase seems to be developed by Zn diffusion into Mn-oxide grains.",
journal = "Materials Science Forum",
title = "Structural and magnetic properties of the Zn-Mn-O system",
volume = "555",
pages = "95-+",
doi = "10.4028/www.scientific.net/MSF.555.95"
}
Milivojević, D., Blanuša, J., Spasojević, V., Kusigerski, V.,& Babić-Stojić, B. S.. (2007). Structural and magnetic properties of the Zn-Mn-O system. in Materials Science Forum, 555, 95-+.
https://doi.org/10.4028/www.scientific.net/MSF.555.95
Milivojević D, Blanuša J, Spasojević V, Kusigerski V, Babić-Stojić BS. Structural and magnetic properties of the Zn-Mn-O system. in Materials Science Forum. 2007;555:95-+.
doi:10.4028/www.scientific.net/MSF.555.95 .
Milivojević, Dušan, Blanuša, Jovan, Spasojević, Vojislav, Kusigerski, Vladan, Babić-Stojić, Branka S., "Structural and magnetic properties of the Zn-Mn-O system" in Materials Science Forum, 555 (2007):95-+,
https://doi.org/10.4028/www.scientific.net/MSF.555.95 . .

Zn-Mn-O: Ferromagnet at room temperature

Milivojević, Dušan; Blanuša, Jovan; Spasojević, Vojislav; Kusigerski, Vladan; Babić-Stojić, Branka S.

(2007)

TY  - JOUR
AU  - Milivojević, Dušan
AU  - Blanuša, Jovan
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Babić-Stojić, Branka S.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6745
AB  - Semiconductor Zn-Mn-O crystallites were synthesized by a solid state reaction method starting from the thermal decomposition of the appropriate oxalates. Samples were thermally treated in air at temperatures ranging from 400 to 900 degrees C. The nominal concentrations of manganese were x = 0.01, 0.02, 0.04 and 0.10. The samples were investigated by the X-ray powder diffraction method, magnetization measurements and by electron paramagnetic resonance. X-ray diffractgrams show a dominant wurtzite structure of Zn-Mn-O. Room temperature ferromagnelism was observed in Zn-Mn-O samples with manganese concentrations x:! 0.04, thermally treated at low temperature (500 degrees C). The saturation magnetization for the sample with x = 0.01 was 0.05 mu(B)/Mn. The room temperature ferromagnetism seems to be due to the diffusion of Zn into the Mn-oxides gains.
AB  - Ispitivani su poluprovodnički Zn-Mn-O kristali dobijeni metodom sinteze u čvrstom stanju - termičkom dekompozicijom odgovarajućih oksalata i termičkim tretmanom. Termički tretman je izvršen u vazduhu na različitim temperaturama u intervalu od 400 do 900 °C. Nominalne koncentracije mangana su x = 0,01; 0,02; 0,04 i 0,10. Uzorci su ispitivani metodom difrakcije X-zraka na prahu, merenjem magnetizacije i metodom elektronske paramagnetne rezonance. Analiza difraktograma ukazuje na dominantnu vurcitnu kristalnu strukturu sintetisanog Zn-Mn-O materijala. Feromagnetizam na sobnoj temperaturi je uočen na uzorcima Zn-Mn-O sa koncentracijom mangana x ≤ 0,04 termički tretiranim na nižim temperaturama (500 °C). Magnetizacija zasićenja u uzorku x = 0,01 iznosi 0,05 μB/Mn. Ferromagnetna faza je verovatno posledica difuzije Zn u neki manganov oksid.
T2  - Hemijska industrija
T1  - Zn-Mn-O: Ferromagnet at room temperature
T1  - Zn-Mn-O - feromagnetik na sobnoj temperaturi
VL  - 61
IS  - 3
SP  - 147
EP  - 151
DO  - 10.2298/HEMIND0703147M
ER  - 
@article{
author = "Milivojević, Dušan and Blanuša, Jovan and Spasojević, Vojislav and Kusigerski, Vladan and Babić-Stojić, Branka S.",
year = "2007",
abstract = "Semiconductor Zn-Mn-O crystallites were synthesized by a solid state reaction method starting from the thermal decomposition of the appropriate oxalates. Samples were thermally treated in air at temperatures ranging from 400 to 900 degrees C. The nominal concentrations of manganese were x = 0.01, 0.02, 0.04 and 0.10. The samples were investigated by the X-ray powder diffraction method, magnetization measurements and by electron paramagnetic resonance. X-ray diffractgrams show a dominant wurtzite structure of Zn-Mn-O. Room temperature ferromagnelism was observed in Zn-Mn-O samples with manganese concentrations x:! 0.04, thermally treated at low temperature (500 degrees C). The saturation magnetization for the sample with x = 0.01 was 0.05 mu(B)/Mn. The room temperature ferromagnetism seems to be due to the diffusion of Zn into the Mn-oxides gains., Ispitivani su poluprovodnički Zn-Mn-O kristali dobijeni metodom sinteze u čvrstom stanju - termičkom dekompozicijom odgovarajućih oksalata i termičkim tretmanom. Termički tretman je izvršen u vazduhu na različitim temperaturama u intervalu od 400 do 900 °C. Nominalne koncentracije mangana su x = 0,01; 0,02; 0,04 i 0,10. Uzorci su ispitivani metodom difrakcije X-zraka na prahu, merenjem magnetizacije i metodom elektronske paramagnetne rezonance. Analiza difraktograma ukazuje na dominantnu vurcitnu kristalnu strukturu sintetisanog Zn-Mn-O materijala. Feromagnetizam na sobnoj temperaturi je uočen na uzorcima Zn-Mn-O sa koncentracijom mangana x ≤ 0,04 termički tretiranim na nižim temperaturama (500 °C). Magnetizacija zasićenja u uzorku x = 0,01 iznosi 0,05 μB/Mn. Ferromagnetna faza je verovatno posledica difuzije Zn u neki manganov oksid.",
journal = "Hemijska industrija",
title = "Zn-Mn-O: Ferromagnet at room temperature, Zn-Mn-O - feromagnetik na sobnoj temperaturi",
volume = "61",
number = "3",
pages = "147-151",
doi = "10.2298/HEMIND0703147M"
}
Milivojević, D., Blanuša, J., Spasojević, V., Kusigerski, V.,& Babić-Stojić, B. S.. (2007). Zn-Mn-O: Ferromagnet at room temperature. in Hemijska industrija, 61(3), 147-151.
https://doi.org/10.2298/HEMIND0703147M
Milivojević D, Blanuša J, Spasojević V, Kusigerski V, Babić-Stojić BS. Zn-Mn-O: Ferromagnet at room temperature. in Hemijska industrija. 2007;61(3):147-151.
doi:10.2298/HEMIND0703147M .
Milivojević, Dušan, Blanuša, Jovan, Spasojević, Vojislav, Kusigerski, Vladan, Babić-Stojić, Branka S., "Zn-Mn-O: Ferromagnet at room temperature" in Hemijska industrija, 61, no. 3 (2007):147-151,
https://doi.org/10.2298/HEMIND0703147M . .

Room temperature ferromagnetism in Zn-Mn-O

Milivojević, Dušan; Blanuša, Jovan; Spasojević, Vojislav; Kusigerski, Vladan; Babić-Stojić, Branka S.

(2007)

TY  - JOUR
AU  - Milivojević, Dušan
AU  - Blanuša, Jovan
AU  - Spasojević, Vojislav
AU  - Kusigerski, Vladan
AU  - Babić-Stojić, Branka S.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3169
AB  - Zn-Mn-O semiconductor crystallites with nominal manganese concentration x = 0.01, 0.04 and 0.10 were synthesized by a solid state reaction method using oxalate precursors. A sintering procedure was carried out in air at 500 and 900 degrees C. The samples were investigated by X-ray diffraction, magnetization measurements and electron paramagnetic resonance. X-ray diffraction spectra reveal that the dominant crystal phase in the Zn-Mn-O system corresponds to the wurtzite structure of ZnO. Room temperature ferromagnetism is observed in Zn-Mn-O samples with manganese concentrations x = 0.01 and 0.04 sintered at low temperature (500 degrees C). Saturation magnetization in the x = 0.01 sample is found to be 0.03 mu(B)/Mn at T = 300 K. The ferromagnetic phase seems to be developed by Zn diffusion into Mn-oxide grains. (C) 2007 Elsevier Ltd. All rights reserved.
T2  - Solid State Communications
T1  - Room temperature ferromagnetism in Zn-Mn-O
VL  - 141
IS  - 12
SP  - 641
EP  - 644
DO  - 10.1016/j.ssc.2007.01.019
ER  - 
@article{
author = "Milivojević, Dušan and Blanuša, Jovan and Spasojević, Vojislav and Kusigerski, Vladan and Babić-Stojić, Branka S.",
year = "2007",
abstract = "Zn-Mn-O semiconductor crystallites with nominal manganese concentration x = 0.01, 0.04 and 0.10 were synthesized by a solid state reaction method using oxalate precursors. A sintering procedure was carried out in air at 500 and 900 degrees C. The samples were investigated by X-ray diffraction, magnetization measurements and electron paramagnetic resonance. X-ray diffraction spectra reveal that the dominant crystal phase in the Zn-Mn-O system corresponds to the wurtzite structure of ZnO. Room temperature ferromagnetism is observed in Zn-Mn-O samples with manganese concentrations x = 0.01 and 0.04 sintered at low temperature (500 degrees C). Saturation magnetization in the x = 0.01 sample is found to be 0.03 mu(B)/Mn at T = 300 K. The ferromagnetic phase seems to be developed by Zn diffusion into Mn-oxide grains. (C) 2007 Elsevier Ltd. All rights reserved.",
journal = "Solid State Communications",
title = "Room temperature ferromagnetism in Zn-Mn-O",
volume = "141",
number = "12",
pages = "641-644",
doi = "10.1016/j.ssc.2007.01.019"
}
Milivojević, D., Blanuša, J., Spasojević, V., Kusigerski, V.,& Babić-Stojić, B. S.. (2007). Room temperature ferromagnetism in Zn-Mn-O. in Solid State Communications, 141(12), 641-644.
https://doi.org/10.1016/j.ssc.2007.01.019
Milivojević D, Blanuša J, Spasojević V, Kusigerski V, Babić-Stojić BS. Room temperature ferromagnetism in Zn-Mn-O. in Solid State Communications. 2007;141(12):641-644.
doi:10.1016/j.ssc.2007.01.019 .
Milivojević, Dušan, Blanuša, Jovan, Spasojević, Vojislav, Kusigerski, Vladan, Babić-Stojić, Branka S., "Room temperature ferromagnetism in Zn-Mn-O" in Solid State Communications, 141, no. 12 (2007):641-644,
https://doi.org/10.1016/j.ssc.2007.01.019 . .
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