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Adsorption of Cs on InAs(111) surfaces

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Author

Summary, in English

Caesiated InAs(111)B (1 x 1) and InAs(111)A (2 x 2) surfaces have been studied by photoelectron spectroscopy. On the InAs(111)B a new (root 3 x root 3)R30 degrees reconstruction was observed. During Cs evaporation remarkably small changes are observed in the lone pair states, and no sign of an accumulation layer at the surface can be observed. Instead, the additional charge provided by Cs is rapidly transported towards the bulk. On the InAs(111)A cesium behaves as a typical electropositive alkali metal donator that enhances the already existing accumulation layer. (c) 2005 Elsevier B.V. All rights reserved.

Department/s

Publishing year

2006

Language

English

Pages

5267-5270

Publication/Series

Proceedings of the Eight International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN8/ICTF13 (Applied Surface Science)

Volume

252

Issue

15

Document type

Conference paper

Publisher

Elsevier

Topic

  • Physical Sciences
  • Natural Sciences

Keywords

  • photoemission
  • indium arsenide
  • Cs
  • adatoms
  • 2DEG

Conference name

Eight International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and the Thirteenth International Congress on Thin Films - ACSIN8/ICTF13

Conference date

2005-06-20 - 2005-06-23

Conference place

Stockholm, Sweden

Status

Published

ISBN/ISSN/Other

  • ISSN: 0169-4332
  • ISSN: 1873-5584