Enhanced intervalley scattering of twisted bilayer graphene by periodic   AB stacked atoms

doi:10.1103/PhysRevB.85.235453

CORC > 北京大学 > 工学院

	Enhanced intervalley scattering of twisted bilayer graphene by periodic AB stacked atoms
	Meng, Lan ; Chu, Zhao-Dong ; Zhang, Yanfeng ; Yang, Ji-Yong ; Dou, Rui-Fen ; Nie, Jia-Cai ; He, Lin
刊名	physical review b
	2012
关键词	ELECTRONIC-PROPERTIES FIELD
DOI	10.1103/PhysRevB.85.235453
英文摘要	The electronic properties of twisted bilayer graphene on SiC substrate were studied via a combination of transport measurements and scanning tunneling microscopy. We report the observation of enhanced intervalley scattering from one Dirac cone to the other, which contributes to weak localization of the twisted bilayer graphene by increasing the interlayer coupling strength. Our experiment and analysis demonstrate that the enhanced intervalley scattering is closely related to the periodic AB stacked atoms (the A atom of layer 1 and the B atom of layer 2 that have the same horizontal positions) that break the sublattice degeneracy of graphene locally. We further show that these periodic AB stacked atoms affect intervalley but not intravalley scattering. The result reported here provides an effective way to atomically manipulate the intervalley scattering of graphene.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000305605100013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Condensed Matter; SCI(E); 16; ARTICLE; 23; 85
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/393315]
专题	工学院
推荐引用方式 GB/T 7714	Meng, Lan,Chu, Zhao-Dong,Zhang, Yanfeng,et al. Enhanced intervalley scattering of twisted bilayer graphene by periodic AB stacked atoms[J]. physical review b,2012.
APA	Meng, Lan.,Chu, Zhao-Dong.,Zhang, Yanfeng.,Yang, Ji-Yong.,Dou, Rui-Fen.,...&He, Lin.(2012).Enhanced intervalley scattering of twisted bilayer graphene by periodic AB stacked atoms.physical review b.
MLA	Meng, Lan,et al."Enhanced intervalley scattering of twisted bilayer graphene by periodic AB stacked atoms".physical review b (2012).