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Thermally and field driven spin-state transitions in (Pr.sub.1-y./sub.Y.sub.y./sub.)Ca.sub.0.3./sub.CoO.sub.3./sub
- 1.0375495 - FZÚ 2012 RIV US eng J - Journal Article
Maryško, Miroslav - Jirák, Zdeněk - Knížek, Karel - Novák, Pavel - Hejtmánek, Jiří - Naito, T. - Sasaki, H. - Fujishiro, H.
Thermally and field driven spin-state transitions in (Pr1-yYy)Ca0.3CoO3
Journal of Applied Physics. Roč. 109, č. 7 (2011), 07E127/1-07E127/3. ISSN 0021-8979. E-ISSN 1089-7550
R&D Projects: GA ČR GA202/09/0421; GA AV ČR IAA400720619
Institutional research plan: CEZ:AV0Z10100521
Keywords : cobaltites * phase-transition * spin-state
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.168, year: 2011
The first-order character of the transition from the low- to - intermediate spin state in the system (Pr(1-y)Yy)Ca0.3CoO3 (y=0.075-0.15) has been verified by magnetization measurements.For y=0.075, the transition manifests itself in susceptibility steps at temperatures depending on external fields.In this case, isothermal measurements show a field-driven transition exhibiting a field hysteresis.The discussion is based on the two-level model and molecular field approximation.
Permanent Link: http://hdl.handle.net/11104/0208132
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