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Magnetic and magnetocaloric effect of Er$_{\bf 20}$Ho$_{\bf 20}$Dy$_{\bf 20}$Cu$_{\bf 20}$Ni$_{\bf 20}$ high-entropy metallic glass |
| Shi-Lin Yu1,†, Lu Tian2,3, Jun-Feng Wang2,‡, Xin-Guo Zhao1, Da Li1, Zhao-Jun Mo2, and Bing Li1 |
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 |
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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.
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Received: 22 November 2023
Revised: 28 December 2023
Accepted manuscript online:
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PACS:
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75.30.Sg
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(Magnetocaloric effect, magnetic cooling)
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75.47.Np
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(Metals and alloys)
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| Fund: 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). |
Corresponding Authors:
Shi-Lin Yu,E-mail:slyu@imr.ac.cn;Jun-Feng Wang,E-mail:jfwang@gia.cas.cn
E-mail: slyu@imr.ac.cn;jfwang@gia.cas.cn
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Cite this article:
Shi-Lin Yu, Lu Tian, Jun-Feng Wang, Xin-Guo Zhao, Da Li, Zhao-Jun Mo, and Bing Li Magnetic and magnetocaloric effect of Er$_{\bf 20}$Ho$_{\bf 20}$Dy$_{\bf 20}$Cu$_{\bf 20}$Ni$_{\bf 20}$ high-entropy metallic glass 2024 Chin. Phys. B 33 057502
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