期刊
JOURNAL OF APPLIED PHYSICS
卷 119, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4941105
关键词
-
资金
- National Key Basic Research Program of China [2015CB921600]
- National Natural Science Foundation of China (NSFC) [51372149, 11274221, 11274222]
- Shanghai Municipal Science and Technology Commission [14QA1402000, 13PJD015]
- Shanghai Municipal Education Commission [12SG34]
The magnetocaloric effect (MCE) is an intrinsic property of magnetic materials that enable magnetic refrigeration devices without using the traditional vapour-compression. Temperature sensitive and anisotropic magnetic solids might give rise to a large rotating MCE for building compact and efficient magnetic cooling systems by simply rotating the sample. Here, we report an unprecedented maximal refrigeration capacity of 497.36 J/kg (at 70 kOe) in perovskite TbFeO3 single crystal, resulting from its giant anisotropic magnetic entropy change along a axis. Our paper reveals that interaction between Fe-3d and Tb-4f electrons drives extremely interesting spin reorientation transition, which is highly sensitive to magnetic field and temperature. These findings highlight potential applications of an emerging material for high efficient low temperature magnetic refrigeration, which is compact and quiet, and does not use ozone-depleting coolant gases. (C) 2016 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据