Reduction of hysteresis loss in itinerant-electron metamagnetic transition by partial substitution of Pr for La in La(FexSi1−x)13
Reduction of hysteresis loss in itinerant-electron metamagnetic transition by partial substitution of Pr for La in La(FexSi1−x)13
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DOI：
10.1016/j.jmmm.2006.10.960
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发表时间：
2007-03
影响因子：
2.7
通讯作者：
S. Fujieda;A. Fujita;K. Fukamichi
中科院分区：
文献类型：
--
作者：
S. Fujieda;A. Fujita;K. Fukamichi
研究了Pr部分取代La（Fe_（0.86）Si_（0.14））_（13）的巡游电子变磁（IEM）转变过程中的磁热效应和磁滞损耗. La0.3Pr0.7（Fe0.86Si0.14）13在0 ~ 5 T的磁场变化下表现出较大的MCE，与Fe含量较高的La（Fe0.88Si0.12）13的MCE基本相同.此外，前者的IEM过渡过程中的滞后损失小于后者。因此，La 1 −zPrz（FexSi 1 −x）13化合物与La（FexSi 1 −x）13化合物相比，可用于实现磁滞损耗小的大型MCE。
The magnetocaloric effects (MCEs) and hysteresis loss in the itinerant-electron metamagnetic (IEM) transition process of La(Fe0.86Si0.14)13have been investigated by the partial substitution of Pr for La. The La0.3Pr0.7(Fe0.86Si0.14)13exhibits large MCEs in the magnetic field change from 0 to 5T, which are almost the same as those of the higher Fe concentration of La(Fe0.88Si0.12)13. Additionally, hysteresis loss in the IEM transition process of the former is smaller than that of the latter. Consequently, the La1−zPrz(FexSi1−x)13compounds are useful to realize large MCEs with smaller hysteresis loss as compared with that of La(FexSi1−x)13.