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Oxygen-induced step bunching and faceting of Rh(553): Experiment and ab initio calculations

Gustafson, Johan LU ; Resta, Andrea LU ; Mikkelsen, Anders LU ; Westerström, Rasmus LU ; Andersen, Jesper N LU ; Lundgren, Edvin LU ; Weissenrieder, Jonas LU ; Schmid, M. ; Varga, P. and Kasper, N. , et al. (2006) In Physical Review B (Condensed Matter and Materials Physics) 74(3).
Abstract
Using a combined experimental and theoretical approach, we show that the initial oxidation of a Rh(553) surface, a surface vicinal to (111), undergoes step bunching when exposed to oxygen, forming lower-index facets. At a pressure of about 10(-6) mbar and a temperature of 380 degrees C this leads to (331) facets with one-dimensional oxide chains along the steps, coexisting with (111) facets. Further increase of the pressure and temperature results in (111) facets only, covered by an O-Rh-O surface oxide. Our density functional theory calculations provide an atomistic understanding of the observed behavior.
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
74
issue
3
article number
035401
publisher
American Physical Society
external identifiers
  • wos:000239426700108
  • scopus:33745714503
ISSN
1098-0121
DOI
10.1103/PhysRevB.74.035401
language
English
LU publication?
yes
id
eb6b609a-4401-4875-aea8-958db9010bb4 (old id 398995)
date added to LUP
2016-04-01 15:37:35
date last changed
2021-10-03 04:12:25
@article{eb6b609a-4401-4875-aea8-958db9010bb4,
  abstract     = {Using a combined experimental and theoretical approach, we show that the initial oxidation of a Rh(553) surface, a surface vicinal to (111), undergoes step bunching when exposed to oxygen, forming lower-index facets. At a pressure of about 10(-6) mbar and a temperature of 380 degrees C this leads to (331) facets with one-dimensional oxide chains along the steps, coexisting with (111) facets. Further increase of the pressure and temperature results in (111) facets only, covered by an O-Rh-O surface oxide. Our density functional theory calculations provide an atomistic understanding of the observed behavior.},
  author       = {Gustafson, Johan and Resta, Andrea and Mikkelsen, Anders and Westerström, Rasmus and Andersen, Jesper N and Lundgren, Edvin and Weissenrieder, Jonas and Schmid, M. and Varga, P. and Kasper, N. and Torrelles, X. and Ferrer, S. and Mittendorfer, F. and Kresse, G.},
  issn         = {1098-0121},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Oxygen-induced step bunching and faceting of Rh(553): Experiment and ab initio calculations},
  url          = {http://dx.doi.org/10.1103/PhysRevB.74.035401},
  doi          = {10.1103/PhysRevB.74.035401},
  volume       = {74},
  year         = {2006},
}