Phase separation and magnetic properties of half-metal-type Co2Cr1-xFexAl alloys
Phase separation and magnetic properties of half-metal-type Co2Cr1-xFexAl alloys
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DOI：
10.1063/1.1821654
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发表时间：
2004-11-15
影响因子：
4
通讯作者：
Fukamichi, K
中科院分区：
文献类型：
--
作者：
Kobayashi, K;Umetsu, RY;Fukamichi, K
研究了半金属型Co2 Cr 1-xFexAl合金系统的相稳定性和磁性能。有人发现，两相分离的发生是不可避免的，在小于x=0.4的浓度范围内，导致偏离的饱和磁矩从广义斯莱特-鲍林线。L2（1）型相在大于x=0.7的浓度范围内变得稳定，其中不存在半金属行为。因此，可以得出结论，对于自旋电子器件的应用最有利的浓度位于具有B2型相的Co2 Cr 1-xFexAl合金中的x=0.4附近。(C)2004年，美国物理学会。
The phase stability and magnetic properties of the half-metal-type Co2Cr1-xFexAl alloy system were investigated. It was found that the occurrence of two-phase separation is unavoidable in a concentration range of less than x=0.4, leading to deviation of the saturation magnetic moments from the generalized Slater-Pauling line. The L2(1)-type phase becomes stable in a concentration range of more than x=0.7, where no half-metallic behaviors are present. Consequently, it is concluded that the most favorable concentration for applications to spintronic devices is located around x=0.4 in Co2Cr1-xFexAl alloys having the B2-type phase. (C) 2004 American Institute of Physics.