| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Table-Like Large Magnetocaloric Effect in the Misch Metal $R$Si Compound |
| Ruo-Shui Liu1†, Jun Liu1,2†, Li-Chen Wang1†, Zheng-Rui Li1, Xiang Yu1, Yan Mi1, Qiao-Yan Dong1, Kai Li3, Dan-Li Li3, Chen-Hui Lv1, Li-Feng Liu1, Shu-Li He1** |
1Department of Physics, Capital Normal University, Beijing 100048
2State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
3Department of Chemistry, Capital Normal University, Beijing 100048
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| Cite this article: |
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Ruo-Shui Liu, Jun Liu, Li-Chen Wang et al 2020 Chin. Phys. Lett. 37 017501 |
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Abstract Magnetic properties and the magnetocaloric effect (MCE) of the $R$Si ($R$ = Ce, Pr, Nd) compounds made of Misch metal (MM) are investigated. Two transitions are found at 12 K and 38 K. Field variation generated large MCE and two peaks are found in the magnetic entropy change ($\Delta S$) curves, which correspond to the two transition temperatures. The maximum values of the magnetic entropy changes ($\Delta S$) are found to be $-5.1$ J/(kg$\cdot$K) and $-9.3$ J/(kg$\cdot$K) for the field ranges of 0–2 T and 0–5 T, respectively. The large $\Delta S$ as well as ultra-low price of MM make (MM)Si a competitive magnetic refrigerant candidate for low temperature in Eriksson cycle.
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Received: 16 July 2019
Published: 23 December 2019
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| PACS: |
75.30.Sg
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(Magnetocaloric effect, magnetic cooling)
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75.50.Cc
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(Other ferromagnetic metals and alloys)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos. 51701130, 51571146, and 51771124. |
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