Magnetocaloric effect in perovskite manganites La0.7-xNdxCa0.3MnO3 and La0.7Ca0.3MnO3

被引：129

作者：

Wang, ZM ^{[1
]}

Ni, G ^{[1
]}

Xu, QY ^{[1
]}

Sang, H ^{[1
]}

Du, YW ^{[1
]}

机构：

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

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 90卷 / 11期

关键词：

D O I：

10.1063/1.1415055

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In perovskite manganites La0.7-xNdxCa0.3MnO3 (x=0, 0.05, 0.1, 0.15, and 0.20) prepared by the sol-gel technique, large magnetocaloric effects have been observed. The maximum of the magnetic entropy change peaks at the magnetic ordering temperature. Compared to La0.7Ca0.3MnO3, an enhancement of the magnetocaloric effect has been obtained in the samples with Nd3+ dopant (for La0.5Nd0.2Ca0.3MnO3, the maximum of DeltaS(M) is about -2.31 J/kg K). (C) 2001 American Institute of Physics.

引用

页码：5689 / 5691

页数：3

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