Electric field driven quantum phase transition between band insulator and topological insulator

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	Electric field driven quantum phase transition between band insulator and topological insulator
	Li J (Li Jun) ; Chang K (Chang Kai)
刊名	applied physics letters
	2009
卷号	95 期号:22 页码:art.no.222110
关键词	cadmium compounds
ISSN号	0003-6951
通讯作者	li, j, chinese acad sci, inst semicond, sklsm, pob 912, beijing 100083, peoples r china. 电子邮箱地址: kchang@red.semi.ac.cn
中文摘要	we demonstrate theoretically that electric field can drive a quantum phase transition between band insulator to topological insulator in cdte/hgcdte/cdte quantum wells. the numerical results suggest that the electric field could be used as a switch to turn on or off the topological insulator phase, and temperature can affect significantly the phase diagram for different gate voltage and compositions. our theoretical results provide us an efficient way to manipulate the quantum phase of hgte quantum wells.
学科主题	半导体物理
收录类别	SCI
资助信息	nsfc 60525405 10874175national basic research program of china (973 program) 2010cb933700
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/172111/7489]
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	Li J ,Chang K . Electric field driven quantum phase transition between band insulator and topological insulator[J]. applied physics letters,2009,95(22):art.no.222110.
APA	Li J ,&Chang K .(2009).Electric field driven quantum phase transition between band insulator and topological insulator.applied physics letters,95(22),art.no.222110.
MLA	Li J ,et al."Electric field driven quantum phase transition between band insulator and topological insulator".applied physics letters 95.22(2009):art.no.222110.