Coverage dependence of surface optical second-harmonic generation from CO/Ni(110): Investigation with a nonlinear-interference technique

X. D. Zhu, Winfried Daum, Xu Dong Xiao, R. Chin, Y. R. Shen

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

A nonlinear-optical-interference technique in surface second-harmonic generation is developed to measure directly the variation of surface nonlinear susceptibility of CO/Ni(110) as a function of the CO coverage. It is found that some of the susceptibility elements vary linearly with the coverage and others nonlinearly. A simple model suggests that the former are dominated by contributions from nearly free electrons, while the latter by contributions from the more localized electrons.

Original languageEnglish (US)
Pages (from-to)11571-11580
Number of pages10
JournalPhysical Review B
Volume43
Issue number14
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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