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
收藏
页码：85 / 92
页数：8
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