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**
1 Department of Physics, Capital Normal University, Beijing 1000482 State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 1001903 Department of Chemistry, Capital Normal University, Beijing 100048
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.
收稿日期: 2019-07-16
出版日期: 2019-12-23
:
75.30.Sg
(Magnetocaloric effect, magnetic cooling)
75.50.Cc
(Other ferromagnetic metals and alloys)
75.60.Ej
(Magnetization curves, hysteresis, Barkhausen and related effects)
引用本文:
. [J]. 中国物理快报, 2020, 37(1): 17501-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/37/1/017501
或
https://cpl.iphy.ac.cn/CN/Y2020/V37/I1/17501
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2020, Vol. 37 
