Step fluctuation spectroscopy of Au(1 1 1) by LEEM

M. Ondrejcek, M. Rajappan, W. Swiech, C. P. Flynn

Research output: Contribution to journalArticlepeer-review


We report a study of the fluctuations exhibited by step edges on clean Au(1 1 1), using low energy electron microscopy. The research yields values for the surface mass diffusion coefficient D s and the orientation-dependent step stiffness β̃(θ) through the temperature range 900-1300 K. Uniform, threefold and sixfold components of the measured β̃(θ) on the 3 m surface have similar magnitudes and are only weakly temperature dependent. The measured D s are similar to values reported earlier for Pt(1 1 1) and Pd(1 1 1) at homologous temperatures, determined relative to the melting temperatures.

Original languageEnglish (US)
Pages (from-to)111-122
Number of pages12
JournalSurface Science
Issue number2-3
StatePublished - Jan 10 2005


  • Gold
  • Low-energy electron microscopy (LEEM)
  • Surface diffusion

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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