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Article
Reconstruction of steps on the Cu(111) surface induced by sulfur
Journal of Chemical Physics
  • Holly L. Walen, Iowa State University
  • Da-Jiang Liu, Ames Laboratory
  • Junepyo Oh, RIKEN Surface and Interface Science Laboratory
  • Hyunseob Lim, RIKEN Surface and Interface Science Laboratory
  • James W. Evans, Iowa State University
  • Yousoo Kim, RIKEN Surface and Interface Science Laboratory
  • Patricia A. Thiel, The Ames Laboratory (U.S. Department of Energy) and Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2015
DOI
10.1063/1.4921258
Abstract
Arich menagerie of structures is identified at 5Kfollowing adsorption of lowcoverages (≤0.05 monolayers) of S on Cu(111) at room temperature. This paper emphasizes the reconstructions at the steps. The A-type close-packed step has 1 row of S atoms along its lower edge, where S atoms occupy alternating pseudo-fourfold-hollow (p4fh) sites. Additionally, there are 2 rows of S atoms of equal density on the upper edge, bridging a row of extra Cu atoms, together creating an extended chain. The B-type close-packed step exhibits an even more complex reconstruction, in which triangle-shaped groups of Cu atoms shift out of their original sites and form a base for S adsorption at (mostly) 4fh sites. We propose a mechanism by which these triangles could generate Cu–S complexes and short chains like those observed on the terraces.
Comments

The following article appeared in Journal of Chemical Physics 142, 19 (2015): 194711 and may be found at doi: 10.1063/1.4921258.

Rights
Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Copyright Owner
American Institute of Physics
Language
en
File Format
application/pdf
Citation Information
Holly L. Walen, Da-Jiang Liu, Junepyo Oh, Hyunseob Lim, et al.. "Reconstruction of steps on the Cu(111) surface induced by sulfur" Journal of Chemical Physics Vol. 142 Iss. 19 (2015) p. 194711-1 - 194711-14
Available at: http://works.bepress.com/james-evans/105/