Magnetic properties and promising magnetocaloric performances in the antiferromagnetic GdFe2Si2 compound

被引：121
作者：
Zhang, Yikun [1 ,2 ,3 ,4 ,5 ]
Zhu, Jian [2 ,3 ,4 ]
Li, Shuo [2 ,3 ,4 ]
Zhang, Zhenqian
Wang, Jiang [2 ,3 ,4 ]
Ren, Zhongming [2 ,3 ,4 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Elect & Informat Engn, Hangzhou 310012, Peoples R China
[2] Shanghai Univ, State Key Lab Adv Special Steels, Shanghai 200444, Peoples R China
[3] Shanghai Univ, Shanghai Key Lab Adv Ferromet, Shanghai 200444, Peoples R China
[4] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
[5] Hangzhou Dianzi Univ, Key Lab Novel Mat Sensor Zhejiang Prov, Hangzhou 310012, Peoples R China
来源：
SCIENCE CHINA-MATERIALS | 2022年 / 65卷 / 05期
基金：
中国国家自然科学基金;
关键词：
rare earths; antiferromagnetic GdFe2Si2 compound; magnetocaloric performances; cryogenic magnetic refrigeration; magnetic phase transition; ACHIEVEMENT; RE;
D O I：
10.1007/s40843-021-1967-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetocaloric (MC) effect-based solid-state magnetic refrigeration (MR) technology has been recognized as an alternative novel method to the presently commercialized gas compression technology. Searching for suitable candidates with promising MC performances is one of the most urgent tasks. Herein, combined experimental and theoretical investigations on the magnetic properties, magnetic phase transition, and cryogenic MC performances of GdFe2Si2 have been performed. An unstable antiferromagnetic (AFM) interaction in the ground state has been confirmed in GdFe2Si2. Moreover, a huge reversible cryogenic MC effect and promising MC performances in GdFe2Si2 have been observed. The maximum isothermal magnetic entropy change, temperature-averaged entropy change with 2 K lift, and refrigerant capacity for GdFe2Si2 were 30.01 J kg(-1) K-1, 29.37 J kg(-1) K-1, and 328.45 J kg(-1) at around 8.6 K with the magnetic change of 0-7 T, respectively. Evidently, the values of these MC parameters for the present AFM compound GdFe2Si2 are superior to those of most recently reported rare-earth-based MC materials, suggesting the potential application for active cryogenic MR.
引用
收藏
页码：1345 / 1352
页数：8
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