On the magnetic and magnetocaloric properties of perovskite La1-xSrxCoO3

被引:17
|
作者
Luong, NH
Chau, N
Huong, PM
Le Minh, D
Chau, NN
Cong, BT
Kurisu, M
机构
[1] Natl Univ Hanoi, Fac Phys, Ctr Mat Sci, Hanoi, Vietnam
[2] Natl Univ Hanoi, Dept Solid State Phys, Hanoi, Vietnam
[3] Japan Adv Inst Sci & Technol, Sch Mat Sci, Tatsunokuchi, Ishikawa 9231292, Japan
关键词
magnetization; magnetocaloric effect; magnetic oxides; perovskite structure;
D O I
10.1016/S0304-8853(01)01016-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Structural. magnetic and magnetocaloric studies on La1-xSrxCoO3 (0.20less than or equal toxless than or equal to0.50) were reported. The crystal structure of the samples is rhombohedral with x = 0.20-0.45 and is cubic with x = 0.50. Magnetization. Curie temperature (T-c) and maximum magnetic-entropy change (DeltaS(max)) depending on the Sr content in the samples are discussed. La(0.55)Sr(0.4)5CoO(3) exhibits the largest value for DeltaS(max) and T-c among the compounds investigated. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:760 / 762
页数:3
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