›› 2015, Vol. 24 ›› Issue (3): 37503-037503.doi: 10.1088/1674-1056/24/3/037503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetic properties and magnetocaloric effects in HoPd intermetallic

莫兆军a b, 沈俊b, 高新强b, 刘瑶c, 吴剑峰b, 沈保根c, 孙继荣c   

  1. a School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
    b Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
    c State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2014-09-09 修回日期:2014-10-20 出版日期:2015-03-05 发布日期:2015-03-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51322605, 11104337, 51271192, and 11274357) and the Knowledge Innovation Project of the Chinese Academy of Sciences.

Magnetic properties and magnetocaloric effects in HoPd intermetallic

Mo Zhao-Jun (莫兆军)a b, Shen Jun (沈俊)b, Gao Xin-Qiang (高新强)b, Liu Yao (刘瑶)c, Wu Jian-Feng (吴剑峰)b, Shen Bao-Gen (沈保根)c, Sun Ji-Rong (孙继荣)c   

  1. a School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
    b Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
    c State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2014-09-09 Revised:2014-10-20 Online:2015-03-05 Published:2015-03-05
  • Contact: Shen Jun E-mail:jshen@mail.ipc.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51322605, 11104337, 51271192, and 11274357) and the Knowledge Innovation Project of the Chinese Academy of Sciences.

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摘要： A large reversible magnetocaloric effect accompanied by a second order magnetic phase transition from PM to FM is observed in the HoPd compound. Under the magnetic field change of 0-5 T, the magnetic entropy change -ΔSMmax and the refrigerant capacity RC for the compound are evaluated to be 20 J/(kg · K) and 342 J/kg, respectively. In particular, large -ΔSMmax (11.3 J/(kg · K)) and RC (142 J/kg) are achieved under a low magnetic field change of 0-2 T with no thermal hysteresis and magnetic hysteresis loss. The large reversible magnetocaloric effect (both the large -ΔSM and the high RC) indicates that HoPd is a promising material for magnetic refrigeration at low temperature.

关键词: magnetocaloric effect, magnetic entropy change, magnetic phase transformation

Abstract: A large reversible magnetocaloric effect accompanied by a second order magnetic phase transition from PM to FM is observed in the HoPd compound. Under the magnetic field change of 0-5 T, the magnetic entropy change -ΔSMmax and the refrigerant capacity RC for the compound are evaluated to be 20 J/(kg · K) and 342 J/kg, respectively. In particular, large -ΔSMmax (11.3 J/(kg · K)) and RC (142 J/kg) are achieved under a low magnetic field change of 0-2 T with no thermal hysteresis and magnetic hysteresis loss. The large reversible magnetocaloric effect (both the large -ΔSM and the high RC) indicates that HoPd is a promising material for magnetic refrigeration at low temperature.

Key words: magnetocaloric effect, magnetic entropy change, magnetic phase transformation

中图分类号:  (Magnetocaloric effect, magnetic cooling)

  • 75.30.Sg
65.40.gd (Entropy) 75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))