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A dose dependence study of O-2 adsorbed on large Ar clusters
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
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2009 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 130, no 22, 224305- p.Article in journal (Refereed) Published
Abstract [en]

An investigation of the behavior of O-2 molecules in and on O-2-doped large (< N > similar or equal to 8000) Ar host clusters has been performed by means of core and valence photoelectron spectroscopy. Data from pure O-2 and Ar clusters, as well as from O-2-doped Ar clusters, are presented. The experimental data together with calculations of the binding energy shifts of oxygen molecular ions in and on the surface of a large host Ar cluster show that the diffusion behavior has a strong dependence on the doping pressure. We conclude that the oxygen molecules in the doped Ar host do not partake in band formation, since there is clear vibrational resolution in the spectral features stemming from screened O-2(+) ions. This implies that valence photoelectron spectroscopy can be used to determine the geometrical structure of this and certain, similar, cluster systems. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3148883]

Place, publisher, year, edition, pages
2009. Vol. 130, no 22, 224305- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-128982DOI: 10.1063/1.3148883ISI: 000266968800013OAI: oai:DiVA.org:uu-128982DiVA: diva2:332393
Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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