Large magnetic entropy change in a La0.8Ca0.2MnO3 single crystal

被引：21

作者：

Phan, MH

Pham, VT

Yu, SC ^{[1
]}

Rhee, JR

Hur, NH

机构：

[1] Chungbuk Natl Univ, Dept Phys, Chonju 361763, South Korea

[2] Sookmyung Womens Univ, Dept Phys, Seoul 140742, South Korea

[3] Korea Res Inst Stand & Sci, Ctr CMR Mat, Taejon 305600, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

entropy; magneto-caloric effect; magnetic refrigeration; single crystal;

D O I：

10.1016/j.jmmm.2003.12.944

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A large magneto-caloric effect is reported in a La0.8Ca0.2MnO3 single crystal. The magnetic entropy change (AS,,,,) reaches similar to 7.25 J/kg, K for an applied field of 5 T, which is very practical for magnetic refrigeration applications. Satisfactory agreement between the theoretical calculations on DeltaS(M) derived in the molecular field approximation and the experimental dependency has been found. (C) 2003 Elsevier B.V. All rights reserved.

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页码：2337 / 2339

页数：3

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