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Surface structure and morphology of InAs(111)B with/without gold nanoparticles annealed under arsenic or atomic hydrogen flux

Författare

Summary, in English

We have investigated the structure and morphology of the InAs(1 1 1)B surface using Low Energy Electron Diffraction (LEED), Scanning Tunneling Microscopy (STM) and Scanning Electron Microscopy (SEM). The surface was prepared by annealing in the presence of an arsenic or atomic hydrogen pressure. A (2 x 2) reconstruction that changes into a (1 x 1) unreconstructed surface after prolonged annealing was observed irrespective of preparation method, while the surface morphology was distinctly different in the two cases. Detailed atomic scale models are proposed to explain the behavior. Deposition of An aerosol nanoparticles on the sample prior to annealing was found to have no effect on the surface reconstruction. The Au particles were found to sink into the surface. (C) 2009 Elsevier B.V. All rights reserved.

Publiceringsår

2010

Språk

Engelska

Sidor

354-360

Publikation/Tidskrift/Serie

Surface Science

Volym

604

Issue

3-4

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Atom and Molecular Physics and Optics

Nyckelord

  • Scanning Tunneling Microscopy
  • InAs
  • Au

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0039-6028