Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices

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	Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices
	W. Yao; K. L. Yao; G. Y. Gao; S. C. Zhu; H. H. Fu
	2012
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	112 期号:10
摘要	Motivated by the molecular-beam epitaxial growth of zinc-blend-type CrTe thin films on ZnTe, we present a theoretical study on the spin-polarized transport properties of ZnTe/CrTe p-n junction as spin diode and CrTe/ZnTe/CrTe magnetic tunnel junction for (001) and (011) surfaces. Both ZnTe(001)/CrTe(001) and ZnTe(011)/CrTe(011) p-n junctions show excellent spin diode effect, the majority spin current of positive voltage is much larger than that of negative voltage and the minority spin current is absolutely inhibited. The ZnTe(001)/CrTe(001) p-n junction has lower "turn off" current and higher rectification ratio (about 10 5) than the ZnTe(011)/CrTe(011) which shows obvious anisotropy. We also find that the tunneling magneto resistance ratio of the CrTe/ZnTe/CrTe magnetic tunnel junction is up to about 4 x 10(9)%. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767935]
部门归属	[yao, wei; yao, k. l.; gao, g. y.; zhu, s. c.; fu, h. h.] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [yao, wei; yao, k. l.; gao, g. y.; zhu, s. c.; fu, h. h.] huazhong univ sci & technol, wuhan natl high magnet field ctr, wuhan 430074, peoples r china. [yao, k. l.] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yao, w (reprint author), huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china.;klyao@mail.hust.edu.cn; guoying_gao@mail.hust.edu.cn
关键词	Half-metallic Ferromagnets Molecular-beam Epitaxy Room-temperature Spintronics Magnetoresistance Semiconductors
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60413
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Yao,K. L. Yao,G. Y. Gao,et al. Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices[J]. Journal of Applied Physics,2012,112(10).
APA	W. Yao,K. L. Yao,G. Y. Gao,S. C. Zhu,&H. H. Fu.(2012).Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices.Journal of Applied Physics,112(10).
MLA	W. Yao,et al."Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices".Journal of Applied Physics 112.10(2012).