First-principles study of transport of V doped boron nitride nanotube

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	First-principles study of transport of V doped boron nitride nanotube
	K. L. Yao; Y. Min; Z. L. Liu; H. G. Cheng; S. C. Zhu; G. Y. Gao
	2008
发表期刊	Physics Letters A
ISSN	0375-9601
卷号	372 期号:34 页码:5609-5613
摘要	We perform first-principles calculations of spin-dependent quantum transport in V doped boron nitride nanotube: the junction of pristine (6, 0) boron nitride nanotube in contact with V doped (6, 0) boron nitride nanotube electrodes. Large tunnel magnetoresistance and perfect spin filtration effect are obtained. The zero bias tunnel magnetoresistance is found to be several thousand percent, it reduces monotonically to zero with a voltage scale of about 0.65 V, and eventually goes to negative values after the bias of 0.65 V. The ratio of spin injection is above 95% till the bias of 0.85 V and is even as large as 99% for the bias from 0.25 eV to 0.55 eV when the magnetic configurations of two electrodes are parallel. The understanding of the spin-dependent nonequilibrium transport is presented by investigating microscopic details of the transmission coefficients. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[yao, k. l.; min, y.; liu, z. l.; cheng, h. g.; zhu, s. c.; gao, g. y.] huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. [yao, k. l.] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;min, y (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china;minyi1207@163.com
关键词	First-principles One-dimensional Tunnel Magnetoresistance Spin Filter Large Magnetoresistance Ferromagnetic-films Sic Nanowires Bn Nanotubes Systems Conductance Junctions
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WOS记录号	WOS:000258748200020
引用统计	被引频次：47[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33287
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. L. Yao,Y. Min,Z. L. Liu,et al. First-principles study of transport of V doped boron nitride nanotube[J]. Physics Letters A,2008,372(34):5609-5613.
APA	K. L. Yao,Y. Min,Z. L. Liu,H. G. Cheng,S. C. Zhu,&G. Y. Gao.(2008).First-principles study of transport of V doped boron nitride nanotube.Physics Letters A,372(34),5609-5613.
MLA	K. L. Yao,et al."First-principles study of transport of V doped boron nitride nanotube".Physics Letters A 372.34(2008):5609-5613.