Magnetic and magnetocaloric effect of Er_(20)Ho_(20)Dy_(20)Cu_(20)Ni_(20)high-entropy metallic glass  

作　　者：于世霖 田路 王俊峰 赵新国 李达 莫兆军 李昺 Shi-Lin Yu;Lu Tian;Jun-Feng Wang;Xin-Guo Zhao;Da Li;Zhao-Jun Mo;Bing Li(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;Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,China;School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[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

出　　处：《Chinese Physics B》2024年第5期602-606,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.52371203 and 52271192);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(-△S_(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(-△S_(M)^(max))reaches 12.5 J/kg·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 

分 类 号：O469[理学—凝聚态物理]