Magnetocaloric effect in La0.65Ca0.35Ti1-xMnxO3 ceramic perovskites

被引：24

作者：

Bohigas, X

del Barco, E

Sales, M

Tejada, J

机构：

[1] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain

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

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷

关键词：

magnetocaloric effect; perovskites; entropy; refrigeration;

D O I：

10.1016/S0304-8853(98)00812-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we comment on experiments we have carried out on ceramic perovskites of composition La0.65Ca0.35Ti1-xMnxO3. From low- and high-field magnetic measurements recorded at different temperatures, we have discovered the existence of a large entropic change associated to the ferrimagnetic-paramagnetic transition. Our conclusion is that these materials are excellent candidates as working materials in refrigeration devices. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：455 / 457

页数：3

共 9 条

[1]

BARDAY JA, 1979, J APPL PHYS, V50, P50870

[2] Tunable magnetocaloric effect in ceramic perovskites [J].