Overview of magnetoelastic coupling in (Mn, Fe)2(P, Si)-type magnetocaloric materials

查看全文 作　　者：Xue-Fei [1]Miao;Shu-Yuan [1]Hu;Feng [1]Xu;Ekkes [2]Bruck

机构地区：[1]MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;[2]Fundamental Aspects of Materials and Energy, Department of Radiation Science and Technology, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands

出　　处：《Rare Metals》索引2018年第37卷第9期,共11页

基　　金：financially supported by the Key Research & Development Program of Jiangsu Province(No.BE2017102) 摘　　要：(MnFe)_2(P, Si)-type compounds are, to date, one of the best candidates for magnetic refrigeration and energy conversion applications due to the combination of giant magnetocaloric effect (MCE), tunable working temperature range and low material cost. The giant MCE in the (Mn,Fe)_2(P, Si)-type compounds originates from strong magnetoelastic coupling, where the lattice degrees of freedom and spin degrees of freedom are efficiently coupled. The tunability of the phase transition, in terms of the critical temperature and the character of the phase transition, is essentially attributed to the changes in the magnetoelastic coupling in the (Mn, Fe)_2(P, Si)-type compounds. In this review, not only the fundamentals of the magnetoelastic coupling but also the related practical aspects such as magnetocaloric performance, hysteresis issue and mechanical stability are discussed for the (Mn, Fe)_2(P, Si)-type compounds. Additionally, some future fundamental studies on the MCE as well as possible ways of solving the hysteresis and fracture issues are proposed. 关键词：材料费用 SI 类型 FE 磁电工作温度范围阶段转变磁滞现象

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Overview of magnetoelastic coupling in (Mn, Fe)2(P, Si)-type magnetocaloric materials

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