Local photocurrent generation in thin films of the topological insulator Bi2Se3

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	Local photocurrent generation in thin films of the topological insulator Bi2Se3
	Kastl, C ; Guan, T ; He, XY ; Wu, KH ; Li, YQ ; Holleitner, AW
刊名	APPLIED PHYSICS LETTERS
	2012
卷号	101 期号:25
关键词	HGTE QUANTUM-WELLS SINGLE DIRAC CONE SURFACE MAGNETORESISTANCE BI2TE3 PHASE
ISSN号	0003-6951
通讯作者	Kastl, C: Tech Univ Munich, Walter Schottky Inst, Coulombwall 4A, D-85748 Garching, Germany.
中文摘要	We report on the optoelectronic properties of thin films of Bi2Se3 grown by molecular beam epitaxy. The films are patterned into circuits with typical extensions of tens of microns. In spatially resolved experiments, we observe submicron photocurrent patterns with positive and negative amplitudes. The patterns are independent of the applied bias voltage, but they depend on the width of the circuits. We interpret the patterns to originate from a local photocurrent generation due to potential fluctuations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4772547]
收录类别	SCI
资助信息	DFG [HO 3324/4]; National Basic Research Program of China [2012CB921703]; National Science Foundation of China [91121003, 10974240]; Chinese Academy of Science
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/40939]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Kastl, C,Guan, T,He, XY,et al. Local photocurrent generation in thin films of the topological insulator Bi2Se3[J]. APPLIED PHYSICS LETTERS,2012,101(25).
APA	Kastl, C,Guan, T,He, XY,Wu, KH,Li, YQ,&Holleitner, AW.(2012).Local photocurrent generation in thin films of the topological insulator Bi2Se3.APPLIED PHYSICS LETTERS,101(25).
MLA	Kastl, C,et al."Local photocurrent generation in thin films of the topological insulator Bi2Se3".APPLIED PHYSICS LETTERS 101.25(2012).