Elsevier

Surface Science

Volume 285, Issues 1–2, 1 April 1993, Pages 109-116
Surface Science

Influence of the substrate on the band structure of alkali metal monolayers

https://doi.org/10.1016/0039-6028(93)90919-BGet rights and content

Abstract

The band structure of a monolayer of sodium on Ni(110) was studied experimentally by inverse photoemission and theoretically by a nearly free electron surface state model. We show that large gaps in the projected bulk band structure of the substrate can modify the electronic bands of the alkali metal overlayer considerably. Therefore the substrate band structure has to be taken into account explicitely for a realistic description of the band dispersion.

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