Giant reversible anisotropic magnetocaloric effect in an antiferromagnetic EuFe2As2 single crystal

被引：31

作者：

Kim, M. S. ^{[1
]}

Sung, N. H. ^{[1
]}

Son, Yoonkook ^{[2
]}

Ko, M. S. ^{[1
]}

Cho, B. K. ^{[1
,2
]}

机构：

[1] Gwangju Inst Sci & Technol GIST, Sch Mat Sci & Engn, Kwangju 500712, South Korea

[2] Gwangju Inst Sci & Technol GIST, Grad Program Photon & Appl Phys, Kwangju 500712, South Korea

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 17期

关键词：

TRANSITION; METAL;

D O I：

10.1063/1.3579254

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Here, we report the characterization of a giant reversible anisotropic magnetocaloric effect in a EuFe2As2 single crystal. The magnetic properties of EuFe2As2 single crystals are quite interesting; they display a small magnetic hysteresis, anisotropy, and a first-order magnetic phase transition. The maximum magnetic entropy change in in-plane magnetic-field direction was 14.6 J/kg K around 20 K and out-of-plane was 10.3 J/kg K around 20 K as a result of changing the magnetic field from 0 to 5 T. These results suggest the possibility of using EuFe2As2 single crystals in magnetic refrigeration applications. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3579254]

引用

页数：3

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