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Adsorption of lithium on the Si(111)7 × 7 surface studied with high resolution core-level spectroscopy

Author

Summary, in English

Li-adsorption on the Si(111)7 × 7 surface at room temperature has been studied for different metal coverages with core-level spectroscopy. Four Li-induced components are observed in the Si 2p level at high Li-coverages indicating the formation of four thermodynamically stable phases. It is shown that the reaction between the Li atoms and the Si(111)7 × 7 surface takes place in two steps. In the first the surface reconstructs towards a “7 × 1” reconstruction and in the second Li react with the Si-substrate, forming Li suicides, with the Si atom coordinating up to four Li neighbors.

Publishing year

1993

Language

English

Pages

384-388

Publication/Series

Surface Science

Volume

284

Issue

1-2

Document type

Journal article (letter)

Publisher

Elsevier

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Research group

  • Electromagnetic theory

ISBN/ISSN/Other

  • ISSN: 0039-6028