Magnetic and magnetocaloric effect of Er20Ho20Dy20Cu20Ni20 high-entropy metallic glass

于世霖 ¹田路 ²王俊峰 ³赵新国 ¹李达 ¹莫兆军 ³李昺¹

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作者信息

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;School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300130,China
3. Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China
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Abstract

Er20Ho20Dy20Cu20Ni20 high-entropy metallic glass exhibited excellent magnetic refrigeration material with a wide temperature range and high refrigeration capacity(RC)was reported.Er20Ho20Dy20Cu20Ni20 high-entropy metallic glass was observed with typical spin glass behavior around 15.5 K.In addition,we find that the magnetic entropy change(-△SM)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(-△.SmaxM)reaches 12.5 J/kg·K,and the corre-sponding 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 Er20Ho20Dy20Cu20Ni20 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

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基金项目

国家自然科学基金(52371203)

国家自然科学基金(52271192)

Ministry of Science and Technology of China(2021YFB3501201)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量34

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