中国物理B ›› 2024, Vol. 33 ›› Issue (5): 57502-057502.doi: 10.1088/1674-1056/ad1a94

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Magnetic and magnetocaloric effect of Er20Ho20Dy20Cu20Ni20 high-entropy metallic glass

Shi-Lin Yu(于世霖)1,†, Lu Tian(田路)2,3, Jun-Feng Wang(王俊峰)2,‡, Xin-Guo Zhao(赵新国)1, Da Li(李达)1, Zhao-Jun Mo(莫兆军)2, and Bing Li(李昺)1   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China and School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China;
    2 Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China;
    3 School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
  • 收稿日期:2023-11-22 修回日期:2023-12-28 接受日期:2024-01-04 出版日期:2024-05-20 发布日期:2024-05-20
  • 通讯作者: Shi-Lin Yu, Jun-Feng Wang E-mail:slyu@imr.ac.cn;jfwang@gia.cas.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52371203 and 52271192) and the Ministry of Science and Technology of China (Grant No. 2021YFB3501201).

Magnetic and magnetocaloric effect of Er20Ho20Dy20Cu20Ni20 high-entropy metallic glass

Shi-Lin Yu(于世霖)1,†, Lu Tian(田路)2,3, Jun-Feng Wang(王俊峰)2,‡, Xin-Guo Zhao(赵新国)1, Da Li(李达)1, Zhao-Jun Mo(莫兆军)2, and Bing Li(李昺)1   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China and School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China;
    2 Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China;
    3 School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
  • Received:2023-11-22 Revised:2023-12-28 Accepted:2024-01-04 Online:2024-05-20 Published:2024-05-20
  • Contact: Shi-Lin Yu, Jun-Feng Wang E-mail:slyu@imr.ac.cn;jfwang@gia.cas.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 52371203 and 52271192) and the Ministry of Science and Technology of China (Grant No. 2021YFB3501201).

摘要: Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass exhibited excellent magnetic refrigeration material with a wide temperature range and high refrigeration capacity (RC) was reported. Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass was observed with typical spin glass behavior around 15.5 K. In addition, we find that the magnetic entropy change ($-\Delta S_{\rm M}$) originates from the sample undergoing a ferromagnetic (FM) to paramagnetic (PM) transition around 20 K. Under a field change from 0 T to 7 T, the value of maximum magnetic entropy change ($-\Delta S_{\rm M}^{\max}$) reaches 12.5 J/kg$\cdot$K, and the corresponding value of RC reaches 487.7 J/kg in the temperature range from 6 K to 60 K. The large RC and wide temperature range make the Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass be a promising material for application in magnetic refrigerators.

关键词: magnetic materials, magnetocaloric effect, high-entropy metallic glass, magnetic refrigeration, large refrigeration capacity

Abstract: Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass exhibited excellent magnetic refrigeration material with a wide temperature range and high refrigeration capacity (RC) was reported. Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass was observed with typical spin glass behavior around 15.5 K. In addition, we find that the magnetic entropy change ($-\Delta S_{\rm M}$) originates from the sample undergoing a ferromagnetic (FM) to paramagnetic (PM) transition around 20 K. Under a field change from 0 T to 7 T, the value of maximum magnetic entropy change ($-\Delta S_{\rm M}^{\max}$) reaches 12.5 J/kg$\cdot$K, and the corresponding value of RC reaches 487.7 J/kg in the temperature range from 6 K to 60 K. The large RC and wide temperature range make the Er$_{20}$Ho$_{20}$Dy$_{20}$Cu$_{20}$Ni$_{20}$ high-entropy metallic glass be a promising material for application in magnetic refrigerators.

Key words: magnetic materials, magnetocaloric effect, high-entropy metallic glass, magnetic refrigeration, large refrigeration capacity

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

  • 75.30.Sg
75.47.Np (Metals and alloys)