Large inverse and normal magnetocaloric effects in HoBi compound with nonhysteretic first-order phase transition  

作　　者：Yan Zhang You-Guo Shi Li-Chen Wang Xin-Qi Zheng Jun Liu Ya-Xu Jin Ke-Wei Zhang Hong-Xia Liu Shuo-Tong Zong Zhi-Gang Sun Ji-Fan Hu Tong-Yun Tong Bao-Gen Shen 张艳;石友国;王利晨;郑新奇;刘俊;金亚旭;张克维;刘虹霞;宗朔通;孙志刚;胡季帆;赵同云;沈保根(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Laboratory of Magnetic and Electric Functional Materials and Applications,The Key Laboratory of Shanxi Province,Taiyuan 030024,China;School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China [2]Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [3]Laboratory of Magnetic and Electric Functional Materials and Applications,The Key Laboratory of Shanxi Province,Taiyuan 030024,China [4]School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China

出　　处：《Chinese Physics B》2022年第7期539-543,共5页中国物理B（英文版）

基　　金：the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi Province,China(Grant No.2021L304);the Taiyuan University of Science and Technology Scientific Research Initial Funding,China(Grant Nos.20202022 and 20222002);the Funding for Outstanding Doctoral Research in Jin,China(Grant No.20212002);the Fund from the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,China(Grant No.2022-KF-32);the National Natural Science Foundation of China(Grant No.51901150)。

摘　　要：HoBi single crystal and polycrystalline compounds with Na Cl-type structure are successfully obtained,and their magnetic and magnetocaloric properties are studied in detail.With temperature increasing,Ho Bi compound undergoes two magnetic transitions at 3.7 K and 6 K,respectively.The transition temperature at 6 K is recognized as an antiferromagneticto-paramagnetic(AFM–PM)transition,which belongs to the first-order magnetic phase transition(FOMT).It is interesting that the Ho Bi compound with FOMT exhibits good thermal and magnetic reversibility.Furthermore,a large inverse and normal magnetocaloric effect(MCE)is found in Ho Bi single crystal in the H||[100]direction,and the positive?SMpeak reaches 13.1 J/kg·K under a low field change of 2 T and the negative?S_(M)peak arrives at-18 J/kg·K under a field change of5 T.These excellent properties are expected to be applied to some magnetic refrigerators with special designs and functions.

关 键 词：magnetocaloric effect ANTIFERROMAGNETIC rare-earth compounds 

分 类 号：TB64[一般工业技术—制冷工程]