Tunable magnetocaloric effect in ceramic perovskites

被引：213

作者：

Bohigas, X

Tejada, J

del Barco, E

Zhang, XX

Sales, M

机构：

[1] Univ Politecn Catalunya, Dept Fis & Engn Nucl, Barcelona, Catalonia, Spain

[2] Univ Barcelona, Dept Fis Fonamental, Barcelona, Catalonia, Spain

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 03期

关键词：

D O I：

10.1063/1.121844

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A large entropy variation (magnetocaloric effect) has been discovered in ceramic perovskites with the formulas La0.65Ca0.35Ti1-xMnxO3-z and La0.5+x+yLi0.5-3yTi1-3xMn3xO3-z. Both Curie temperature and entropy change were studied from 4.2 to 400 K for different stoichiometric compositions and applied magnetic fields. Our conclusion is that these materials are excellent candidates for working materials in magnetic refrigeration and liquefaction devices in a wide temperature range. (C) 1998 American Institute of Physics.

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页码：390 / 392

页数：3

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