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High-coverage oxygen structures on Rh(111): Adsorbate repulsion and site preference is not enough

Kohler, L; Kresse, G; Schmid, M; Lundgren, Edvin LU ; Gustafson, Johan LU ; Mikkelsen, Anders LU ; Borg, Mikael LU ; Yuhara, J; Andersen, Jesper N LU and Marsman, M, et al. (2004) In Physical Review Letters 93(26).
Abstract
A new O induced structure on Rh(111) displaying a (2root3 x 2root3)R30degrees periodicity with an oxygen coverage of 2/3 has been studied by high resolution core level spectroscopy, scanning tunneling microscopy, and density functional theory. Although O favors fcc hollow sites in all other known phases, it occupies both fcc and hcp sites in this structure, which cannot be explained by pairwise adsorbate repulsion only. Both the (22root3 x 2root3)R30degrees and (2x2)-3O structures also exemplify that density-of-states contrast can lead to oxygen adatoms appearing as protrusions in scanning tunneling microscopy images.
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publication status
published
subject
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Physical Review Letters
volume
93
issue
26
publisher
American Physical Society
external identifiers
  • wos:000226054600040
  • scopus:37649026924
ISSN
1079-7114
DOI
10.1103/PhysRevLett.93.266103
language
English
LU publication?
yes
id
f43ff2e9-d999-4e49-a96e-d65d8e25d508 (old id 257755)
date added to LUP
2007-10-23 18:59:25
date last changed
2017-07-02 03:34:59
@article{f43ff2e9-d999-4e49-a96e-d65d8e25d508,
  abstract     = {A new O induced structure on Rh(111) displaying a (2root3 x 2root3)R30degrees periodicity with an oxygen coverage of 2/3 has been studied by high resolution core level spectroscopy, scanning tunneling microscopy, and density functional theory. Although O favors fcc hollow sites in all other known phases, it occupies both fcc and hcp sites in this structure, which cannot be explained by pairwise adsorbate repulsion only. Both the (22root3 x 2root3)R30degrees and (2x2)-3O structures also exemplify that density-of-states contrast can lead to oxygen adatoms appearing as protrusions in scanning tunneling microscopy images.},
  articleno    = {266103},
  author       = {Kohler, L and Kresse, G and Schmid, M and Lundgren, Edvin and Gustafson, Johan and Mikkelsen, Anders and Borg, Mikael and Yuhara, J and Andersen, Jesper N and Marsman, M and Varga, P},
  issn         = {1079-7114},
  language     = {eng},
  number       = {26},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {High-coverage oxygen structures on Rh(111): Adsorbate repulsion and site preference is not enough},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.93.266103},
  volume       = {93},
  year         = {2004},
}