Magnetocaloric properties of Ag-substituted perovskite-type manganites

被引：197

作者：

Tang, T ^{[1
]}

Gu, KM ^{[1
]}

Cao, QQ ^{[1
]}

Wang, DH ^{[1
]}

Zhang, SY ^{[1
]}

Du, YW ^{[1
]}

机构：

[1] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 222卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

magnetic entropy change; perovskite manganites; magnetic refrigerants; DSC; first-order phase transition;

D O I：

10.1016/S0304-8853(00)00544-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic entropy change larger than that of gadolinium has been observed near room temperature in polycrystalline of La0.8Ag0.2MnO3 perovskite-type manganite. The large magnetic entropy change produced by the abrupt reduction of magnetization is associated with a first-order phase transition of the sample near the Curie temperature. This phenomenon indicates that perovskite manganites have some potential applications for magnetic refrigerants in an extended high-temperature range. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：110 / 114

页数：5

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