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	Effect of transverse electric field on helical edge states in a quantum spin-hall system
	Liu, Genhua1; Zhou, Guanghui2,3; Chen, Yong-Hai4
刊名	Applied physics letters
	2011-11-28
卷号	99期号:22页码:3
关键词	Cadmium compounds Ii-vi semiconductors Mercury compounds Quantum hall effect Semiconductor quantum wells Spin hall effect Wide band gap semiconductors
ISSN号	0003-6951
DOI	10.1063/1.3664776
通讯作者	Liu, genhua(liugenhua@semi.ac.cn)
英文摘要	We study the electronic band, density distribution, and transport property for a hgte/cdte quantum well hall bar with finite-width in the presence of a transverse electric field. it is found that the electric field can lead to a topological phase transition which controls edge state properties. interestingly, the chirality of edge states can be modified under electric field, and a sufficient high field can remove the spectrum gap induced by the coupling between the edge states in a narrow hall bar, restoring quantum spin-hall effect. these findings may provide a fundamental understanding of topological edge states. (c) 2011 american institute of physics. [doi:10.1063/1.3664776]
WOS关键词	WELLS
WOS研究方向	Physics
WOS类目	Physics, Applied
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000298244500043
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428181
专题	半导体研究所
通讯作者	Liu, Genhua
作者单位	1.Cent S Univ Forestry & Technol, Coll Comp & Informat Engn, Changsha 410004, Hunan, Peoples R China 2.Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China 3.Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Manipulat, Minist Educ, Changsha 410081, Hunan, Peoples R China 4.Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Liu, Genhua,Zhou, Guanghui,Chen, Yong-Hai. Effect of transverse electric field on helical edge states in a quantum spin-hall system[J]. Applied physics letters,2011,99(22):3.
APA	Liu, Genhua,Zhou, Guanghui,&Chen, Yong-Hai.(2011).Effect of transverse electric field on helical edge states in a quantum spin-hall system.Applied physics letters,99(22),3.
MLA	Liu, Genhua,et al."Effect of transverse electric field on helical edge states in a quantum spin-hall system".Applied physics letters 99.22(2011):3.

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