Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure
Само за регистроване кориснике
2013
Аутори
Rosić, MilenaLogar, Mihovil
Zagorac, Jelena B.
Devečerski, Aleksandar
Egelja, Adela
Kusigerski, Vladan
Spasojević, Vojislav
Matović, Branko
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and Ca0.8Gd0.2MnO3 were prepared using a modified glycine nitrate procedure. Obtained powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. All samples where characterized by DTA, XRD and SQUID magnetometry. The possibility of incorporation of Gd ions in the positions A of the perovskite structure was investigated by X-ray methods. Influence of Gd on unit cell volume of the perovskite compounds, occupation numbers and distances between atoms were analyzed by Rietveld refinement. Microstructure size strain analysis was performed, as well. The results revealed that Gd entered positions A in the structure. Magnetic measurements showed that a Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by introductio...n of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Кључне речи:
Powders: chemical preparation / X-ray methods / Magnetic properties / Spin glassesИзвор:
Ceramics International, 2013, 39, 2, 1853-1861Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
DOI: 10.1016/j.ceramint.2012.08.033
ISSN: 0272-8842
WoS: 000313379400122
Scopus: 2-s2.0-84870294960
Колекције
Институција/група
VinčaTY - JOUR AU - Rosić, Milena AU - Logar, Mihovil AU - Zagorac, Jelena B. AU - Devečerski, Aleksandar AU - Egelja, Adela AU - Kusigerski, Vladan AU - Spasojević, Vojislav AU - Matović, Branko PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5259 AB - The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and Ca0.8Gd0.2MnO3 were prepared using a modified glycine nitrate procedure. Obtained powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. All samples where characterized by DTA, XRD and SQUID magnetometry. The possibility of incorporation of Gd ions in the positions A of the perovskite structure was investigated by X-ray methods. Influence of Gd on unit cell volume of the perovskite compounds, occupation numbers and distances between atoms were analyzed by Rietveld refinement. Microstructure size strain analysis was performed, as well. The results revealed that Gd entered positions A in the structure. Magnetic measurements showed that a Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved. T2 - Ceramics International T1 - Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure VL - 39 IS - 2 SP - 1853 EP - 1861 DO - 10.1016/j.ceramint.2012.08.033 ER -
@article{ author = "Rosić, Milena and Logar, Mihovil and Zagorac, Jelena B. and Devečerski, Aleksandar and Egelja, Adela and Kusigerski, Vladan and Spasojević, Vojislav and Matović, Branko", year = "2013", abstract = "The synthesis, crystal structure and magnetic properties of Ca1-xGdxMnO3 (x = 0.05; 0.1; 0.15; 0.2) perovskite has been investigated. Powders with nominal compositions Ca0.95Gd0.05MnO3, Ca0.9Gd0.9MnO3, Ca0.85Gd0.15MnO3 and Ca0.8Gd0.2MnO3 were prepared using a modified glycine nitrate procedure. Obtained powders were calcinated in the temperature interval from 850 degrees C to 950 degrees C for 10 min. All samples where characterized by DTA, XRD and SQUID magnetometry. The possibility of incorporation of Gd ions in the positions A of the perovskite structure was investigated by X-ray methods. Influence of Gd on unit cell volume of the perovskite compounds, occupation numbers and distances between atoms were analyzed by Rietveld refinement. Microstructure size strain analysis was performed, as well. The results revealed that Gd entered positions A in the structure. Magnetic measurements showed that a Gd3+ substituted Ca2+ ions changes antiferromagnetic properties of CaMnO3 by introduction of ferromagnetic interaction due to a double exchange between Mn3+ and Mn4+ ions. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.", journal = "Ceramics International", title = "Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure", volume = "39", number = "2", pages = "1853-1861", doi = "10.1016/j.ceramint.2012.08.033" }
Rosić, M., Logar, M., Zagorac, J. B., Devečerski, A., Egelja, A., Kusigerski, V., Spasojević, V.,& Matović, B.. (2013). Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure. in Ceramics International, 39(2), 1853-1861. https://doi.org/10.1016/j.ceramint.2012.08.033
Rosić M, Logar M, Zagorac JB, Devečerski A, Egelja A, Kusigerski V, Spasojević V, Matović B. Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure. in Ceramics International. 2013;39(2):1853-1861. doi:10.1016/j.ceramint.2012.08.033 .
Rosić, Milena, Logar, Mihovil, Zagorac, Jelena B., Devečerski, Aleksandar, Egelja, Adela, Kusigerski, Vladan, Spasojević, Vojislav, Matović, Branko, "Investigation of the structure and the magnetic behavior of nanostructure Ca1-xGdxMnO3 (x=0.05; 0.1; 0.15; 0.2) obtained by modified glycine nitrate procedure" in Ceramics International, 39, no. 2 (2013):1853-1861, https://doi.org/10.1016/j.ceramint.2012.08.033 . .