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Author Lei, Jun ♦ Sun, Hong ♦ Yu, K. W. ♦ Louie, Steven G. ♦ Cohen, Marvin L.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ BINDING ENERGY ♦ CONFINEMENT ♦ ELECTRONS ♦ PHOTOIONIZATION ♦ SCATTERING
Abstract Image potential states (IPS's) on periodically stepped metal surfaces have been calculated within an impenetrable surface model. Band splittings and band anticrossings are predicted for IPS's caused by the lateral back scatterings of the stepped surfaces. A reduction in the binding energy of the lowest IPS's was found due to the lateral confinement, which agrees fairly well with the experimental results. The calculated photoionization transition-matrix elements show that the photoionization of the lowest-energy IPS's on the stepped metal surface is nearly the same as that on planar metal surfaces, while for the high-energy IPS's the umklapp process becomes important in the photoionization, giving rise to electron scattering in different directions.
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-01-15
Publisher Place United States
Journal Physical Review B
Volume Number 63
Issue Number 4


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