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Magnetocaloric effect of an antiferromagnetic ErAl2Ge2 single crystal

文献类型：期刊论文

作者Gao, Fei1,2; Ren, Weijun2; Zhuang, Yanxin1; Zhao, Xinguo2; Li, Bing2; Zhang, Zhidong2
刊名JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
出版日期2021-09-01
卷号533页码:6
关键词ErAl2Ge2 Magnetic-entropy change Magnetic phase transition
ISSN号0304-8853
DOI10.1016/j.jmmm.2021.168014
通讯作者Ren, Weijun(wjren@imr.ac.cn) ; Zhuang, Yanxin(yxzhuang@epm.neu.edu.cn)
英文摘要The magnetocaloric effect (MCE) is the entropy change in magnetic materials upon application and removal of magnetic fields, providing an alternative path for refrigeration other than conventional gas cycles. In this work, we report a large MCE of the antiferromagnetic compound ErAl2Ge2. The maximum magnetic-entropy change is -19.52 J/kg K under a magnetic field change of 0-70 kOe for isotropic ErAl2Ge2 powder. This value increases to -24.84 J/kg K for a single crystal when the direction of the magnetic field H is parallel to the ab-plane. By using the anisotropy of the MCE of an ErAl2Ge2 crystal, large rotating magnetic-entropy changes of -6.30 J/kg K for H = 20 kOe and -9.03 J/kg K for H = 40 kOe can be obtained. Thus, a single crystal or textured ErAl(2)Ge(2 )may be used as the refrigerant of a rotating magnetic refrigerator, a magnetic cooling system with a simple structure.
资助项目National Key Research and Development Program of China[2017YFB0702701] ; National Natural Science Foundation of China[52071323] ; National Natural Science Foundation of China[51671192] ; National Natural Science Foundation of China[51771197] ; Liaoning Revitalization Talents Program[XLYC1807122]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000649634400005
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Liaoning Revitalization Talents Program
源URL[http://ir.imr.ac.cn/handle/321006/161043]  
专题金属研究所_中国科学院金属研究所
通讯作者Ren, Weijun; Zhuang, Yanxin
作者单位1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Fei,Ren, Weijun,Zhuang, Yanxin,et al. Magnetocaloric effect of an antiferromagnetic ErAl2Ge2 single crystal[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2021,533:6.
APA Gao, Fei,Ren, Weijun,Zhuang, Yanxin,Zhao, Xinguo,Li, Bing,&Zhang, Zhidong.(2021).Magnetocaloric effect of an antiferromagnetic ErAl2Ge2 single crystal.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,533,6.
MLA Gao, Fei,et al."Magnetocaloric effect of an antiferromagnetic ErAl2Ge2 single crystal".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 533(2021):6.

入库方式： OAI收割

来源：金属研究所

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