Reversible room-temperature magnetocaloric effect in Mn5PB2

被引：31
作者：
Xie, Z. G. [1 ]
Geng, D. Y.
Zhang, Z. D.
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 20期
基金：
中国国家自然科学基金;
关键词：
MAGNETIC-ENTROPY CHANGE;
D O I：
10.1063/1.3518064
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic properties and magnetocaloric effect of the Mn5PB2 compound have been investigated. The maximum values of magnetic entropy change -Delta S-M at 302 K are 4.93 and 2.64 J kg(-1) K-1 for magnetic field changes of 5 and 2 T, respectively, which are closely related with a second-order magnetic transition from the ferromagnetic to the paramagnetic state. The reversible magnetocaloric effect with relatively large magnetic entropy change makes the Mn5PB2 compound (free of rare earths) and Mn5PB2-based materials attractive candidates for room-temperature magnetic refrigeration. (C) 2010 American Institute of Physics. [doi:10.1063/1.3518064]
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页数：3
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