Magnetic and calorimetric measurements on the magnetocaloric effect in La0.6Ca0.4MnO3

被引：129

作者：

Bohigas, X

Tejada, J

Marínez-Sarrión, ML

Tripp, S

Black, R

机构：

[1] Univ Politecn Catalunya, Dept Fis & Engn Nucl, E-08028 Barcelona, Catalonia, Spain

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

[3] Univ Barcelona, Dept Quim Inorgan, E-08028 Barcelona, Catalonia, Spain

[4] Quantum Design, San Diego, CA 92121 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 208卷 / 1-2期

关键词：

magnetocaloric effect; perovskites; magnetic refrigeration; heat capacity;

D O I：

10.1016/S0304-8853(99)00581-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetization and heat capacity measurements at different temperatures and fields were recorded on a sample of La0.6Ca0.4MnO3 with perovskite-like structure. Investigation into Curie temperature, magnetic entropy change and anomaly of the heat capacity was carried out in the temperature range of 200-300 K and magnetic field range of 0-3 T. The results show that the material displays a second-order phase transition at 260 K achieving modest magnetic entropy variation suggesting that this material is a candidate for use as an active magnetic refrigerant, (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：85 / 92

页数：8

共 16 条

[1] ACTIVE AND PASSIVE MAGNETIC REGENERATORS IN GAS MAGNETIC REFRIGERATORS [J].