The work function of adsorbed alkalis on metals revisited: A coverage-dependent polarizability approach

R. W. Verhoef, M. Asscher*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

A model is presented to explain the change in work function as a function of alkali metal coverage on transition metals based on dipole-dipole depolarization assuming a coverage-dependent polarizability of the adsorbate-substrate complex. The fit of the model is a great improvement over fixed-polarizability depolarization models, and the resultant prediction for the variation of the polarizability with coverage is qualitatively similar for different alkalis on the same surface, and quantitatively similar for the same alkali on different surfaces.

Original languageEnglish
Pages (from-to)11-18
Number of pages8
JournalSurface Science
Volume391
Issue number1-3
DOIs
StatePublished - 26 Nov 1997

Keywords

  • Polarizability
  • Work function

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