Temperature dependence of the xenon-layer morphology on platinum (111) studied with scanning tunneling microscopy

Sebastian Horch, Peter Zeppenfeld, George Comsa

Research output: Contribution to journalConference articleResearchpeer-review

56 Downloads (Pure)

Abstract

The temperature induced changes in the morphology of a xenon sub-monolayer adsorbed on a platinum (111) surface have been investigated using a variable temperature scanning tunneling microscope (STM). The morphology changes of Xe layers adsorbed at 17K and annealed in the temperature range between 17 and 34K were compared to the morphologies of Xe layers adsorbed at different temperatures in the same range. Effects of the single Xe atom diffusivity on Pt(lll) as well as of the 2D evaporation rate of the Xe islands could be observed. The corresponding activation energies were estimated to be 0.7 kcal/mol (31 meV) and 1.5 kcal/mol (64 meV), respectively.
Original languageEnglish
JournalSurface Science
Volume331
Issue numberPart B
Pages (from-to)908-912
ISSN0039-6028
DOIs
Publication statusPublished - 1995
Externally publishedYes
Event14th European Conference on Surface Science - Leipzig, Germany
Duration: 19 Sep 199423 Sep 1994
Conference number: 14

Conference

Conference14th European Conference on Surface Science
Number14
CountryGermany
CityLeipzig
Period19/09/199423/09/1994

Keywords

  • Noble gases
  • Platinum
  • Scanning tunneling microscopy
  • Surface structure

Cite this