One-dimensional xenon band structures on hydrogen modified and stepped platinum surfaces

P. Trischberger, H. Dröge, S. Gokhale, J. Henk, H. P. Steinrück, W. Widdra, D. Menzel

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The adsorption of xenon on hydrogen modified Pt(110)-(1 × 2) and on Pt(997) has been studied using TPD, LEED, XPS, and ARUPS. On Pt(110)-(1 × 2) with preadsorbed hydrogen, a single xenon species forming one-dimensional adsorbate chains in the [11̄0] direction is found. ARUPS shows well-resolved dispersion of the xenon 5p1/2 and the split Sp3/2 bands in the [11̄0] azimuth, but no dispersion in the [001] direction, in agreement with the packing density. On Pt(997) xenon decorates the close-packed steps in [11̄0] direction at low coverages. No dispersion of xenon bands is seen in ARUPS, indicating weak lateral adsorbate interaction along the chains as expected from the relatively large Xe-Xe distance of 5.6 Å extracted from LEED.

Original languageEnglish
Pages (from-to)155-159
Number of pages5
JournalSurface Science
Volume377-379
DOIs
StatePublished - 20 Apr 1997

Keywords

  • Angle resolved photoemission
  • Noble gases
  • Physical adsorption
  • Platinum
  • Soft X-ray photoelectron spectroscopy
  • Stepped single crystal surfaces
  • Synchrotron radiation photoelectron spectroscopy
  • Thermal desorption spectroscopy

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