Spin-dependent transport and spin polarization in coupled quantum wells

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	Spin-dependent transport and spin polarization in coupled quantum wells
	Jia CH
刊名	journal of applied physics
	2008
卷号	104 期号:6 页码:art. no. 064321
关键词	EFFECT DIRECTIONAL COUPLER
ISSN号	0021-8979
通讯作者	chen, yh, chinese acad sci, inst semicond, key lab semicond mat sci, pob 912, beijing 100083, peoples r china. 电子邮箱地址: yhchen@red.semi.ac.cn
中文摘要	we theoretically investigate the electron transport and spin polarization of two coupled quantum wells with dresselhaus spin-orbit interaction. in analogy with the optical dual-channel directional coupler, the resonant tunneling effect is treated by the coupled-mode equations. we demonstrate that spin-up and -down electrons can be completely separated from each other for the system with an appropriate system geometry and a controllable barrier. our result provides a new approach to construct spin-switching devices without containing any magnetic materials or applying a magnetic field. (c) 2008 american institute of physics. [doi: 10.1063/1.2981204]
学科主题	半导体物理
收录类别	SCI
资助信息	973 program 2006cb604908 2006cb921607 national natural science foundation of china 60625402 the work was supported by the 973 program (grant nos. 2006cb604908 and 2006cb921607), and the national natural science foundation of china (grant no. 60625402).
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/6412]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Jia CH. Spin-dependent transport and spin polarization in coupled quantum wells[J]. journal of applied physics,2008,104(6):art. no. 064321.
APA	Jia CH.(2008).Spin-dependent transport and spin polarization in coupled quantum wells.journal of applied physics,104(6),art. no. 064321.
MLA	Jia CH."Spin-dependent transport and spin polarization in coupled quantum wells".journal of applied physics 104.6(2008):art. no. 064321.