摘要
Magnetic properties and the magnetocaloric effect(MCE)of the RSi(R=Ce,Pr,Nd)compounds made of Misch metal(MM)are investigated.Two transitions are found at 12K and 38K.Field variation generated large MCE and two peaks are found in the magnetic entropy change(△S)curves,which correspond to the two transition temperatures.The maximum values of the magnetic entropy changes(△S)are found to be-5.1 J/(kg·K)and-9.3 J/(kg·K)for the field ranges of 0-2 T and 0-5 T,respectively.The large AS as well as ultra-low price of MM make(MM)Si a competitive magnetic refrigerant candidate for low temperature in Eriksson cycle.
作者
刘若水
刘俊
王利晨
李峥睿
俞翔
米岩
董巧燕
李凯
李丹丽
吕晨辉
刘丽峰
贺淑莉
Ruo-Shui Liu;Jun Liu;Li-Chen Wang;Zheng-Rui Li;Xiang Yu;Yan Mi;Qiao-Yan Dong;Kai Li;Dan-Li Li;Chen-Hui Lv;Li-Feng Liu;Shu-Li He(Department of Physics,Capital Normal University,Beijing 100048;State Key Laboratory for Magnetism,Institute of Physics,Chinese Academy of Sciences,Beijing 100190;Department of Chemistry,Capital Normal University,Beijing 100048)
基金
the National Natural Science Foundation of China under Grant Nos.51701130,51571146,and 51771124.
