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LIU Xin

Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Chemistry
Discipline:Physical Chemistry (including Chemical Physics). Inorganic Chemistry
Business Address:西部校区化工综合楼C307.
Contact Information:Email: xliu@dlut.edu.cn
E-Mail:xliu@dlut.edu.cn
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Current position: Xin Liu's Homepage >> Scientific Research >> Paper Publications

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

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Indexed by:期刊论文

Date of Publication:2008-09-01

Journal:APPLIED PHYSICS LETTERS

Included Journals:SCIE、EI、Scopus

Volume:93

Issue:9

ISSN No.:0003-6951

Abstract: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.

 

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