Preserving stable 100% spin polarization at (111) heterostructures of half-metallic Heusler alloy Co2VGa with semiconductor PbS

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	Preserving stable 100% spin polarization at (111) heterostructures of half-metallic Heusler alloy Co2VGa with semiconductor PbS
	H. P. Han ; W. Q. Hu ; G. Y. Gao ; K. L. Yao
刊名	Journal of Applied Physics
	2012
卷号	112 期号:8
关键词	magnetic-properties growth films gaas
ISSN号	0021-8979
中文摘要	Based on the half-metallicity confirmed experimentally in bulk Heusler alloy Co2VGa, we use the first-principles calculations to extend our previous studies on the Co2VGa (111) surfacial properties to the interfaces of Co2VGa/PbS (111) heterostructures in which four possible interfacial structures are considered between the V- and Ga-terminated (111) surfaces of Co2VGa and S- and Pb-terminated (111) surfaces of PbS. From the atomic density of states, it is shown that the half-metallicity of the bulk system is destroyed at Ga-S and Ga-Pb configurations while V-S and V-Pb configurations exhibit 100% spin polarization and nearly 100% spin polarization, respectively. Furthermore, the structure relaxation and the calculated interfacial adhesion energies indicate that V-S configuration is the most stable structure among them. In addition, we also discuss the changes of the atom magnetic moments at interface and subinterface layers with respect to the corresponding bulk values. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4759159]
原文出处	://WOS:000310597500055
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/59987]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	H. P. Han,W. Q. Hu,G. Y. Gao,et al. Preserving stable 100% spin polarization at (111) heterostructures of half-metallic Heusler alloy Co2VGa with semiconductor PbS[J]. Journal of Applied Physics,2012,112(8).
APA	H. P. Han,W. Q. Hu,G. Y. Gao,&K. L. Yao.(2012).Preserving stable 100% spin polarization at (111) heterostructures of half-metallic Heusler alloy Co2VGa with semiconductor PbS.Journal of Applied Physics,112(8).
MLA	H. P. Han,et al."Preserving stable 100% spin polarization at (111) heterostructures of half-metallic Heusler alloy Co2VGa with semiconductor PbS".Journal of Applied Physics 112.8(2012).