Studies of alkali adsorption on Rh(111) using optical second-harmonic generation

H. W K Tom, C. M. Mate, X. D. Zhu, J. E. Crowell, Y. R. Shen, G. A. Somorjai

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86 Scopus citations

Abstract

Dramatic changes were observed in the optical second-harmonic generation from the Rh(111) crystal surface as the surface was covered with alkali atoms. For low alkali coverage, these changes are explained qualitatively in terms of optical transitions between alkali atomic-derived electronic states and, for high coverage, in terms of the plasmon resonance of the alkali layer. The results establish the surface specificity of second-harmonic generation to the topmost 1 or 2 atomic layers of alkali metals.

Original languageEnglish (US)
Pages (from-to)466-476
Number of pages11
JournalSurface Science
Volume172
Issue number2
DOIs
StatePublished - Jul 1 1986

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

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    Tom, H. W. K., Mate, C. M., Zhu, X. D., Crowell, J. E., Shen, Y. R., & Somorjai, G. A. (1986). Studies of alkali adsorption on Rh(111) using optical second-harmonic generation. Surface Science, 172(2), 466-476. https://doi.org/10.1016/0039-6028(86)90768-5