Large reversible magnetocaloric effect in Dy2In

被引：28
|
作者：
Zhang, Q. [1 ]
Liu, X. G.
Yang, F.
Feng, W. J.
Zhao, X. G.
Kang, D. J.
Zhang, Z. D.
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 05期
关键词：
TEMPERATURE; REFRIGERATION;
D O I：
10.1088/0022-3727/42/5/055011
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A large reversible magnetocaloric effect over a wide temperature region has been observed in the compound Dy2In. For a magnetic-field change of 5 T, the maximum magnetic-entropy change -Delta S-M is 9.2 J kg(-1) K-1 at 126 K. The full width at half maximum (delta T-FWHM) of the -Delta S-M versus T curve has a high value of 80 K and the relative cooling power (RCP) is as high as 736 J kg(-1) with no hysteresis losses. In particular, a large reversible -Delta S-M (4.6 J kg(-1) K-1), large delta T-FWHM (50 K) and large RCP (230 J kg(-1)) are also achieved for a low field change of 2 T. Therefore, Dy2In may be an interesting material for low-temperature magnetic refrigeration.
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页数：3
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