Title

Coadsorbate-induced enhancement in the photoemission intensity of alkali core levels

Document Type

Article

Date of Original Version

7-20-1993

Abstract

The interaction of oxygen and CO with the alkali Na was studied with core level photoemission using synchrotron radiation. We observed intensity increases in the Na2p core level by a factor of 1.5-2 for the systems O2/Na/Ni(111), CO/Na/Ni(111), O2/Na/Cu(110) and O2/Na/Cu(111). These enhancements were more or less independent of substrate, coadsorbate and alkali precoverage. We examine several models to explain these observations. © 1993.

Publication Title

Surface Science

Volume

292

Issue

1-2

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