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

Författare:
Publiceringsår: 1993
Språk: Engelska
Sidor: L384-L388
Publikation/Tidskrift/Serie: Surface Science Letters
Volym: 284
Nummer: 1-2
Dokumenttyp: Artikel
Förlag: Elsevier Science

Sammanfattning

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.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • Electromagnetic theory
  • ISSN: 0039-6028

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