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dc.contributor.authorBagus, Paul
dc.contributor.authorParmigiani, Fulviocat
dc.contributor.authorIllas i Riera, Francesccat
dc.contributor.authorBrundle, C.
dc.description.abstractWe present the result of polar angle resolved x¿ray photoemission spectroscopy on Al(111)/O and cluster calculations of the O(1s) binding energy (BE) for various model situations. In the experimental data two O(1s) peaks are observed, separated by 1.3 eV. The angular behavior (depth¿resolution) could indicate that the lower BE peak is associated with an O atom under the surface, and the higher BE peak with an O atom above the surface. Equally, it could indicate oxygen islands on the surface where the perimeter atoms have a higher O(1s) BE than the interior atoms. The cluster calculations show that the former interpretation cannot be correct, since an O ads below the surface has a higher calculated O(1s) BE than one above. Cluster calculations simulating oxygen islands are, however, consistent with the experimental data.eng
dc.format.extent2 p.-
dc.publisherAmerican Institute of Physics-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofJournal of Vacuum Science Technology A-Vacuum Surfaces and Films, 1991, vol. 9, p. 1747-1748-
dc.rights(c) American Institute of Physics, 1991-
dc.sourceArticles publicats en revistes (Ciència dels Materials i Química Física)-
dc.subject.classificationEspectroscòpia d'electronscat
dc.subject.otherElectron spectroscopyeng
dc.titleX-ray photoelectron spectroscopy of oxygen adsorbates on Al(111): Theory experimenteng
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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