Energetics of Entropic Step Doubling on W(430)

  • S. Dey
  • S. Kiriukhin
  • Leyla Sutcu
  • J. West
  • E. H. Conrad
Part of the NATO ASI Series book series (NSSB, volume 360)

Abstract

We present LEED evidence from W(430) showing a phase transition from single-height steps to double-height steps occuring at 940 K. The transition is thought to be driven by the formation of kinks on double steps that are energetically lower compared to kinks on single-height steps. The doubling transition can be predicted in terms of a simple free energy model including step-step interactions.

Keywords

Free Energy Height Step Step Edge Lower Free Energy Free Energy Curve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • S. Dey
    • 1
  • S. Kiriukhin
    • 1
  • Leyla Sutcu
    • 2
  • J. West
    • 1
  • E. H. Conrad
    • 1
  1. 1.School of PhysicsGeorgia Institute of TechnologyAtlantaUSA
  2. 2.CTSPSClark Atlanta UniversityAtlantaUSA

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