Large half-metallic gap in ferromagnetic semi-Heusler alloys CoCrP and CoCrAs

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	Large half-metallic gap in ferromagnetic semi-Heusler alloys CoCrP and CoCrAs
	Z. Y. Yao; Y. S. Zhang; K. L. Yao
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:6
摘要	We investigate the electronic structure and magnetism of semi-Heusler alloys CoCrP and CoCrAs using the full-potential linearized augmented plane wave method. The calculations reveal that CoCrP and CoCrAs are half-metallic (HM) ferromagnets with the same magnetic moment of 2.00 mu(B) per formula unit. Both alloys have large half-metallic gaps (up to 0.50 eV) and wide band gaps (above 1 eV). The half-metallicity of CoCrP and CoCrAs can be retained even when their lattice constants are changed by -4.8% to 6.6% and -7.7% to 4.5%, respectively. The two alloys show great promise in the applications of spin valve and magnetic tunnel junction. (C) 2012 American Institute of Physics. [http://dx.doi.ora/10.1063/1.4742867]
部门归属	[yao, zhongyu] hainan normal univ, sch phys & elect engn, haikou 571158, peoples r china. [zhang, y. s.; yao, k. l.] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [yao, k. l.] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yao, zy (reprint author), hainan normal univ, sch phys & elect engn, haikou 571158, peoples r china.;yzy@hainnu.edu.cn
关键词	Fe3o4 Cro2 Te Sb
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60415
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Y. Yao,Y. S. Zhang,K. L. Yao. Large half-metallic gap in ferromagnetic semi-Heusler alloys CoCrP and CoCrAs[J]. Applied Physics Letters,2012,101(6).
APA	Z. Y. Yao,Y. S. Zhang,&K. L. Yao.(2012).Large half-metallic gap in ferromagnetic semi-Heusler alloys CoCrP and CoCrAs.Applied Physics Letters,101(6).
MLA	Z. Y. Yao,et al."Large half-metallic gap in ferromagnetic semi-Heusler alloys CoCrP and CoCrAs".Applied Physics Letters 101.6(2012).