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Edvin Lundgren. Portrait.

Edvin Lundgren

Professor

Edvin Lundgren. Portrait.

Oxygen-induced step bunching and faceting of Rh(553): Experiment and ab initio calculations

Author

  • Johan Gustafson
  • Andrea Resta
  • Anders Mikkelsen
  • Rasmus Westerström
  • Jesper N Andersen
  • Edvin Lundgren
  • Jonas Weissenrieder
  • M. Schmid
  • P. Varga
  • N. Kasper
  • X. Torrelles
  • S. Ferrer
  • F. Mittendorfer
  • G. Kresse
Show all

Summary, in English

Using a combined experimental and theoretical approach, we show that the initial oxidation of a Rh(553) surface, a surface vicinal to (111), undergoes step bunching when exposed to oxygen, forming lower-index facets. At a pressure of about 10(-6) mbar and a temperature of 380 degrees C this leads to (331) facets with one-dimensional oxide chains along the steps, coexisting with (111) facets. Further increase of the pressure and temperature results in (111) facets only, covered by an O-Rh-O surface oxide. Our density functional theory calculations provide an atomistic understanding of the observed behavior.

Department/s

  • Synchrotron Radiation Research
  • MAX IV Laboratory

Publishing year

2006

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

74

Issue

3

Document type

Journal article

Publisher

American Physical Society

Topic

  • Physical Sciences
  • Natural Sciences
  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121