Ground-state magnetism of chromium-substituted LiMn2O4 spinel
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2008
Authors
Kusigerski, Vladan
Marković, Dragana
Spasojević, Vojislav

Cvjetićanin, Nikola

Mitrić, Miodrag

Jugović, Dragana

Uskoković, Dragan

Article (Published version)

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Comparative crystal structure and magnetic properties studies have been conducted on quaternary powder spinel samples LiMn1.82Cr0.18O4 obtained by two different synthesis methods, glycine-nitrate (GN) and ultrasonic spray-pyrolysis (SP). Although both samples possess the same spinel structure of the cubic space group Fd (3) over barm, their low-temperature magnetic properties display significant differences. While the SP sample undergoes only spin-glass transition at the freezing temperature T-f 20 K, the GN sample possesses more complicated low-temperature magnetic behavior of the reentrant spin-glass type with the Neel temperature TN 42K and freezing temperature Tf 22 K. High-temperature magnetic susceptibility of both samples is of the Curie-Weiss type with the effective magnetic moments in agreement with the nominal compositions. This fact together with the results of the chemical analysis discards the existence of the diversity in chemical compositions as a possible cause for the ...observed differences in the low-temperature magnetism. On the other hand, the crystal structure analysis done by the Rietveld refinement of the X-ray powder diffraction data points to the strong influence of the cation distribution on the ground-state magnetism of these systems. An explanation of this influence is proposed within the framework of a collective Jahn-Teller effect. (C) 2007 Elsevier B.V. All rights reserved.
Keywords:
magnetic measurement / powder diffraction / crystal structure / phase transition / LiMn2-xCrxO4Source:
Journal of Magnetism and Magnetic Materials, 2008, 320, 6, 943-949Funding / projects:
- Sinteza funkcionalnih materijala sa kontrolisanom strukturom na molekularnom i nano nivou (RS-142006)
DOI: 10.1016/j.jmmm.2007.09.011
ISSN: 0304-8853 (print); 1873-4766 (electronic)
WoS: 000254416300029
Scopus: 2-s2.0-39049084838
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Kusigerski, Vladan AU - Marković, Dragana AU - Spasojević, Vojislav AU - Cvjetićanin, Nikola AU - Mitrić, Miodrag AU - Jugović, Dragana AU - Uskoković, Dragan PY - 2008 UR - https://dais.sanu.ac.rs/123456789/2737 AB - Comparative crystal structure and magnetic properties studies have been conducted on quaternary powder spinel samples LiMn1.82Cr0.18O4 obtained by two different synthesis methods, glycine-nitrate (GN) and ultrasonic spray-pyrolysis (SP). Although both samples possess the same spinel structure of the cubic space group Fd (3) over barm, their low-temperature magnetic properties display significant differences. While the SP sample undergoes only spin-glass transition at the freezing temperature T-f 20 K, the GN sample possesses more complicated low-temperature magnetic behavior of the reentrant spin-glass type with the Neel temperature TN 42K and freezing temperature Tf 22 K. High-temperature magnetic susceptibility of both samples is of the Curie-Weiss type with the effective magnetic moments in agreement with the nominal compositions. This fact together with the results of the chemical analysis discards the existence of the diversity in chemical compositions as a possible cause for the observed differences in the low-temperature magnetism. On the other hand, the crystal structure analysis done by the Rietveld refinement of the X-ray powder diffraction data points to the strong influence of the cation distribution on the ground-state magnetism of these systems. An explanation of this influence is proposed within the framework of a collective Jahn-Teller effect. (C) 2007 Elsevier B.V. All rights reserved. T2 - Journal of Magnetism and Magnetic Materials T1 - Ground-state magnetism of chromium-substituted LiMn2O4 spinel SP - 943 EP - 949 VL - 320 IS - 6 DO - 10.1016/j.jmmm.2007.09.011 UR - https://hdl.handle.net/21.15107/rcub_dais_2737 ER -
@article{ author = "Kusigerski, Vladan and Marković, Dragana and Spasojević, Vojislav and Cvjetićanin, Nikola and Mitrić, Miodrag and Jugović, Dragana and Uskoković, Dragan", year = "2008", abstract = "Comparative crystal structure and magnetic properties studies have been conducted on quaternary powder spinel samples LiMn1.82Cr0.18O4 obtained by two different synthesis methods, glycine-nitrate (GN) and ultrasonic spray-pyrolysis (SP). Although both samples possess the same spinel structure of the cubic space group Fd (3) over barm, their low-temperature magnetic properties display significant differences. While the SP sample undergoes only spin-glass transition at the freezing temperature T-f 20 K, the GN sample possesses more complicated low-temperature magnetic behavior of the reentrant spin-glass type with the Neel temperature TN 42K and freezing temperature Tf 22 K. High-temperature magnetic susceptibility of both samples is of the Curie-Weiss type with the effective magnetic moments in agreement with the nominal compositions. This fact together with the results of the chemical analysis discards the existence of the diversity in chemical compositions as a possible cause for the observed differences in the low-temperature magnetism. On the other hand, the crystal structure analysis done by the Rietveld refinement of the X-ray powder diffraction data points to the strong influence of the cation distribution on the ground-state magnetism of these systems. An explanation of this influence is proposed within the framework of a collective Jahn-Teller effect. (C) 2007 Elsevier B.V. All rights reserved.", journal = "Journal of Magnetism and Magnetic Materials", title = "Ground-state magnetism of chromium-substituted LiMn2O4 spinel", pages = "943-949", volume = "320", number = "6", doi = "10.1016/j.jmmm.2007.09.011", url = "https://hdl.handle.net/21.15107/rcub_dais_2737" }
Kusigerski, V., Marković, D., Spasojević, V., Cvjetićanin, N., Mitrić, M., Jugović, D.,& Uskoković, D.. (2008). Ground-state magnetism of chromium-substituted LiMn2O4 spinel. in Journal of Magnetism and Magnetic Materials, 320(6), 943-949. https://doi.org/10.1016/j.jmmm.2007.09.011 https://hdl.handle.net/21.15107/rcub_dais_2737
Kusigerski V, Marković D, Spasojević V, Cvjetićanin N, Mitrić M, Jugović D, Uskoković D. Ground-state magnetism of chromium-substituted LiMn2O4 spinel. in Journal of Magnetism and Magnetic Materials. 2008;320(6):943-949. doi:10.1016/j.jmmm.2007.09.011 https://hdl.handle.net/21.15107/rcub_dais_2737 .
Kusigerski, Vladan, Marković, Dragana, Spasojević, Vojislav, Cvjetićanin, Nikola, Mitrić, Miodrag, Jugović, Dragana, Uskoković, Dragan, "Ground-state magnetism of chromium-substituted LiMn2O4 spinel" in Journal of Magnetism and Magnetic Materials, 320, no. 6 (2008):943-949, https://doi.org/10.1016/j.jmmm.2007.09.011 ., https://hdl.handle.net/21.15107/rcub_dais_2737 .