Magnetic properties and magnetocaloric effect of GdCr2Si2 compound under hydrostatic pressure

被引：24
|
作者：
Li, Lingwei [1 ,2 ]
Hu, Guanghui [3 ]
Umehara, Izuru [3 ]
Huo, Dexuan [1 ]
Hutchison, Wayne D. [4 ]
Namiki, Takahiro [2 ]
Nishimura, Katsuhiko [2 ]
机构：
[1] Hangzhou Dianzi Univ, Inst Mat Phys, Hangzhou 310018, Zhejiang, Peoples R China
[2] Toyama Univ, Grad Sch Sci & Engn, Toyama 9308555, Japan
[3] Yokohama Natl Univ, Dept Phys, Fac Engn, Yokohama, Kanagawa 2408501, Japan
[4] Univ New S Wales, ADFA, Sch Phys Environm & Math Sci, Canberra, ACT 2610, Australia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 575卷
基金：
中国国家自然科学基金;
关键词：
Magnetocaloric effect; RT2X2; compounds; High pressure effect; Magnetic phase transition;
D O I：
10.1016/j.jallcom.2013.04.081
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The magnetic and magnetocaloric properties of GdCr2Si2 have been studied under hydrostatic pressures up to 1.58 GPa. The temperature and field dependence of magnetization and magnetic entropy change (-Delta DSM) show a weak pressure dependence behaviour. The observed large reversible magnetocaloric effect in GdCr2Si2 is related to a field-induced first order magnetic phase transition. For a field change of 5 T, the maximum -Delta DSM are 14.1, 15.0, and 14.9 J/kg K under the pressures of 0, 0.69, and 1.58 GPa, respectively, the corresponding relative cooling power are evaluated to be 212, 223, and 226 J/kg. (C) 2013 Elsevier B.V. All rights reserved.
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页码：1 / 4
页数：4
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