TY  - CONF
AU  - Antić, Bratislav
AU  - Kusigerski, Vladan
AU  - Kremenović, A.
AU  - Vučinić-Vasić, M.
AU  - Jagličić, Z.
AU  - Spasojević, V.
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12897
AB  - Nanosize ferrite powders, binary Zn-ferrite and cation deficit ternary Zn-Mn ferrite, were synthesized by thermal decomposition of complexes with acetylacetonato ligands. By the ICP analysis and Rietveld refinements of the crystal structure we found cation deficit in the ternary sample. Nonstoichiometry in Zn-Mn ferrite is accompanied with the cation valence change, i.e. partial oxidation of Mn2+ to Mn4+ occurs. Magnetization measurements were carried out on a SQUID magnetometer in the 2-350 K temperature range. Several effects like splitting of ZFC and FC magnetization branches, no-saturation magnetization, hysteresis loop below TB and anhysteretic M(H) curves at 350 K, indicate superparamagnetism in studied samples. The nonsymmetrical FC hysteresis loops obtained for Zn-Mn ferrite are explained by the model of ordered core and spin-glass like shell. Anisotropy constant K of 1.1x105 erg/cm3 for ZnFe2O4 is calculated from ac susceptibility measurement at different frequencies.
C3  - SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers
T1  - Magnetic Properties and Change of Valence of Mn Ion in Nanosize Zn-Mn Ferrites
SP  - 244/a
EP  - 244/d
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12897
ER  - 

@conference{
author = "Antić, Bratislav and Kusigerski, Vladan and Kremenović, A. and Vučinić-Vasić, M. and Jagličić, Z. and Spasojević, V.",
year = "2004",
abstract = "Nanosize ferrite powders, binary Zn-ferrite and cation deficit ternary Zn-Mn ferrite, were synthesized by thermal decomposition of complexes with acetylacetonato ligands. By the ICP analysis and Rietveld refinements of the crystal structure we found cation deficit in the ternary sample. Nonstoichiometry in Zn-Mn ferrite is accompanied with the cation valence change, i.e. partial oxidation of Mn2+ to Mn4+ occurs. Magnetization measurements were carried out on a SQUID magnetometer in the 2-350 K temperature range. Several effects like splitting of ZFC and FC magnetization branches, no-saturation magnetization, hysteresis loop below TB and anhysteretic M(H) curves at 350 K, indicate superparamagnetism in studied samples. The nonsymmetrical FC hysteresis loops obtained for Zn-Mn ferrite are explained by the model of ordered core and spin-glass like shell. Anisotropy constant K of 1.1x105 erg/cm3 for ZnFe2O4 is calculated from ac susceptibility measurement at different frequencies.",
journal = "SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers",
title = "Magnetic Properties and Change of Valence of Mn Ion in Nanosize Zn-Mn Ferrites",
pages = "244/a-244/d",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12897"
}

Antić, B., Kusigerski, V., Kremenović, A., Vučinić-Vasić, M., Jagličić, Z.,& Spasojević, V.. (2004). Magnetic Properties and Change of Valence of Mn Ion in Nanosize Zn-Mn Ferrites. in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers, 244/a-244/d.
https://hdl.handle.net/21.15107/rcub_vinar_12897

Antić B, Kusigerski V, Kremenović A, Vučinić-Vasić M, Jagličić Z, Spasojević V. Magnetic Properties and Change of Valence of Mn Ion in Nanosize Zn-Mn Ferrites. in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers. 2004;:244/a-244/d.
https://hdl.handle.net/21.15107/rcub_vinar_12897 .

Antić, Bratislav, Kusigerski, Vladan, Kremenović, A., Vučinić-Vasić, M., Jagličić, Z., Spasojević, V., "Magnetic Properties and Change of Valence of Mn Ion in Nanosize Zn-Mn Ferrites" in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers (2004):244/a-244/d,
https://hdl.handle.net/21.15107/rcub_vinar_12897 .

TY  - CONF
AU  - Bordas, A.
AU  - Vučinić-Vasić, M.
AU  - Antić, Bratislav
AU  - Kremenović, A.
AU  - Nikolić, A. S.
AU  - Kapor, Agneš
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12898
AB  - The short-range order (nearest and higher neighbor distances) and the cell constants have been experimentally estimated for nanosized spinel Zn- and Mn-ferrites using pair distribution function anlysis. The results were compared with the theoretical values and Rietveld refinement values of XRPD data.
C3  - SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers
T1  - Structural Study of Nanosized ZnFe2O4 and MnFe2O4 Using Atomic Pair Distribution Function
SP  - 18
EP  - 21
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12898
ER  - 

@conference{
author = "Bordas, A. and Vučinić-Vasić, M. and Antić, Bratislav and Kremenović, A. and Nikolić, A. S. and Kapor, Agneš",
year = "2004",
abstract = "The short-range order (nearest and higher neighbor distances) and the cell constants have been experimentally estimated for nanosized spinel Zn- and Mn-ferrites using pair distribution function anlysis. The results were compared with the theoretical values and Rietveld refinement values of XRPD data.",
journal = "SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers",
title = "Structural Study of Nanosized ZnFe2O4 and MnFe2O4 Using Atomic Pair Distribution Function",
pages = "18-21",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12898"
}

Bordas, A., Vučinić-Vasić, M., Antić, B., Kremenović, A., Nikolić, A. S.,& Kapor, A.. (2004). Structural Study of Nanosized ZnFe2O4 and MnFe2O4 Using Atomic Pair Distribution Function. in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers, 18-21.
https://hdl.handle.net/21.15107/rcub_vinar_12898

Bordas A, Vučinić-Vasić M, Antić B, Kremenović A, Nikolić AS, Kapor A. Structural Study of Nanosized ZnFe2O4 and MnFe2O4 Using Atomic Pair Distribution Function. in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers. 2004;:18-21.
https://hdl.handle.net/21.15107/rcub_vinar_12898 .

Bordas, A., Vučinić-Vasić, M., Antić, Bratislav, Kremenović, A., Nikolić, A. S., Kapor, Agneš, "Structural Study of Nanosized ZnFe2O4 and MnFe2O4 Using Atomic Pair Distribution Function" in SFKM 2004 : XVI National Symposium on Condensed Matter Physics : Program and Contributed Papers (2004):18-21,
https://hdl.handle.net/21.15107/rcub_vinar_12898 .