Control of large magnetocaloric effects and hysteresis of La/sub 1-z/Ce/sub z/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ compounds
Control of large magnetocaloric effects and hysteresis of La/sub 1-z/Ce/sub z/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ compounds
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DOI：
10.1109/tmag.2005.854775
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发表时间：
2005-04
影响因子：
2.1
通讯作者：
S. Fujieda;A. Fujita;K. Fukamichi
中科院分区：
文献类型：
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作者：
S. Fujieda;A. Fujita;K. Fukamichi
为了改善磁热效应，研究了La(Fe/sub0.86/Si/sub0.14/)/sub13/中Ce对La的部分替代。La/sub0.7/Ce/sub0.3/(F/sub0.86/Si/sub0.14/)/sub13/中的MCE远大于La(Fe/sub0.86/Si/sub0.14/)/sub13/中的MCE。La/sub0.7/Ce/sub0.3/(Fe/sub0.86/Si/sub0.14/)/sub13/的磁滞回线损耗比La(Fe/sub0.88/Si/sub0.12/)/sub13/的小，但它们的MCE值基本相同。在z<；0.3的情况下也得到了类似的结果。因此，La/sub1-z/Ce/subz/(Fe/sub0.86/Si/sub0.14/)/sub13/化合物可用于高性能磁制冷剂。
In order to improve the magnetocaloric effects (MCEs), the partial substitution of Ce for La in the La(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ has been examined. The MCEs in the La/sub 0.7/Ce/sub 0.3/(F/sub 0.86/Si/sub 0.14/)/sub 13/ are much larger than those in the La(Fe/sub 0.86/Si/sub 0.14/)/sub 13/. The hysteresis loss due to the itinerant-electron metamagnetic transition of the La/sub 0.7/Ce/sub 0.3/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ is smaller than that of La(Fe/sub 0.88/Si/sub 0.12/)/sub 13/, though their MCEs are almost the same. Similar results are obtained in the case of z<0.3. Accordingly, La/sub 1-z/Ce/sub z/(Fe/sub 0.86/Si/sub 0.14/)/sub 13/ compounds are useful for high-performance magnetic refrigerants.