Wavevector-dependent quantum-size effect in electron decay length at Pb thin film surfaces

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	Wavevector-dependent quantum-size effect in electron decay length at Pb thin film surfaces
	Liu, X ; Zhang, SB ; Ma, XC ; Jia, JF ; Xue, QK ; Bao, XH ; Li, WX
刊名	APPLIED PHYSICS LETTERS
	2008
卷号	93 期号:9
关键词	WELL STATES
ISSN号	0003-6951
通讯作者	Liu, X (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China.
中文摘要	The physical origin of quantum-size effects (QSEs) and its impact on the decay length of electrons in Pb thin films are studied by first-principles calculations. We show that QSE is not only size but also wavevector dependent: being maximum at (Gamma) over bar due to strong interlayer coupling between p(z) orbitals, but could be vanishingly small at other symmetry points due to weak interlayer coupling between p(x,y) orbitals. The electron decay length also exhibits systematic oscillations with film thickness and the (Gamma) over bar valley has the slowest decay. (C) 2008 American Institute of Physics.
收录类别	SCI
资助信息	NSFC [20503030, 20733008]; MOST [2007CB815205]; DOE/BES [DE-AC3699GO 10337]; DLUT [2007009]
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/46620]
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	Liu, X,Zhang, SB,Ma, XC,et al. Wavevector-dependent quantum-size effect in electron decay length at Pb thin film surfaces[J]. APPLIED PHYSICS LETTERS,2008,93(9).
APA	Liu, X.,Zhang, SB.,Ma, XC.,Jia, JF.,Xue, QK.,...&Li, WX.(2008).Wavevector-dependent quantum-size effect in electron decay length at Pb thin film surfaces.APPLIED PHYSICS LETTERS,93(9).
MLA	Liu, X,et al."Wavevector-dependent quantum-size effect in electron decay length at Pb thin film surfaces".APPLIED PHYSICS LETTERS 93.9(2008).