Studies of step stiffnesses and relaxation on Pt(1 1 1), Pd(1 1 1) and Mo(0 1 1)

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

Research output: Contribution to journalConference articlepeer-review


We describe investigations of equilibrium step structure on Pt(111), Pd(111) and Mo(011), using low energy electron microscopy. From capillary wave analyses we obtained fluctuation amplitudes and relaxation times for Fourier components of the step edge displacement as functions of wave number q. The τq-1 at ~Tm/2 vary quite accurately with wavevector q as q3 and show that surface diffusion is responsible for the relaxation at these lower temperatures for all clean single crystal surfaces studied. The temperature dependence of the step stiffnesses is very weak in the intervals 1190-1520 K for Pt, 990-1300 K for Pd and 1350-1680 K for Mo.

Original languageEnglish (US)
Pages (from-to)160-164
Number of pages5
JournalSurface Science
Issue number1-3 PART 1
StatePublished - Sep 20 2004
EventProceedings of the 22nd European Conference on Surface Science - Prague, Czech Republic
Duration: Sep 7 2003Sep 12 2003


  • Low-energy electron microscopy (LEEM)
  • Molybdenum
  • Palladium
  • Platinum
  • Surface diffusion

ASJC Scopus subject areas

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


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