Valley-Dependent Brewster Angles and Goos-Hanchen Effect in Strained Graphene

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	Valley-Dependent Brewster Angles and Goos-Hanchen Effect in Strained Graphene
	Wu ZH
刊名	physical review letters
	2011
卷号	106 期号:17 页码:article no.176802
ISSN号	0031-9007
通讯作者	wu, zh, chinese acad sci, inst semicond, sklsm, pob 912, beijing 100083, peoples r china. kchang@semi.ac.cn
学科主题	半导体物理
收录类别	SCI
资助信息	nsf of china ; most ; swedish international development cooperation agency (sida) ; belgian science policy (iap)
语种	英语
公开日期	2011-07-05 ; 2011-07-15
附注	we demonstrate theoretically how local strains in graphene can be tailored to generate a valley-polarized current. by suitable engineering of local strain profiles, we find that electrons in opposite valleys (k or k') show different brewster-like angles and goos-hanchen shifts, exhibiting a close analogy with light propagating behavior. in a strain-induced waveguide, electrons in k and k' valleys have different group velocities, which can be used to construct a valley filter in graphene without the need for any external fields.
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/20849]
专题	半导体研究所_半导体超晶格国家重点实验室
推荐引用方式 GB/T 7714	Wu ZH. Valley-Dependent Brewster Angles and Goos-Hanchen Effect in Strained Graphene[J]. physical review letters,2011,106(17):article no.176802.
APA	Wu ZH.(2011).Valley-Dependent Brewster Angles and Goos-Hanchen Effect in Strained Graphene.physical review letters,106(17),article no.176802.
MLA	Wu ZH."Valley-Dependent Brewster Angles and Goos-Hanchen Effect in Strained Graphene".physical review letters 106.17(2011):article no.176802.