Structural studies of the (√3 × √3)R 30° surfaces of chlorine and iodine on Rh (111)

A.G. Shard, V.R. Dhanak, A. Santoni

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Abstract

The surface structure of Rh(111)-(√3 × √3)R30°-Cl has been investigated by surface extended X-ray absorption fine structure (EXAFS). A nearest neighbour Cl-Rh bond length of 2.38 ± 0.04 angstrom was found, although the adsorption site could not be unambiguously determined. The surface structure of Rh(111)-(√3 × √3)R30°-I was also studied by the normal incidence X-ray standing wavefield (NIXSW) technique. Iodine was found to adsorb predominantly in the 'fcc' hollow site, with at most 10% of atoms in the 'hcp' site.
Original languageEnglish
Pages (from-to)279 - 286
Number of pages8
JournalSurface Science
Volume429
Issue number1
DOIs
Publication statusPublished - 15 Jun 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

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

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