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Magnetocaloric effect of an antiferromagnetic ErAl2Ge2 single crystal
Gao, Fei1,2; Ren, Weijun2; Zhuang, Yanxin1; Zhao, Xinguo2; Li, Bing2; Zhang, Zhidong2
Corresponding AuthorRen, Weijun(wjren@imr.ac.cn) ; Zhuang, Yanxin(yxzhuang@epm.neu.edu.cn)
2021-09-01
Source PublicationJOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN0304-8853
Volume533Pages:6
AbstractThe 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.
KeywordErAl2Ge2 Magnetic-entropy change Magnetic phase transition
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Liaoning Revitalization Talents Program
DOI10.1016/j.jmmm.2021.168014
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000649634400005
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161044
Collection中国科学院金属研究所
Corresponding AuthorRen, Weijun; Zhuang, Yanxin
Affiliation1.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
Recommended Citation
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.
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