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Electron-Induced Desorption of Physisorbed H_ $$2$$ via Resonance Vibrational Excitation
Department of Physics, Göteborg University.
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (Materialfysik)ORCID iD: 0000-0003-1711-5595
2009 (English)In: Physical review letters, ISSN 0031-9007, Vol. 102, no Issue 15, 156104- p.Article in journal (Refereed) Published
Abstract [en]

We show by electron energy-loss measurements that desorption of physisorbed H2 and D2 induced by low-energy electrons takes place with large cross sections, predominantly via resonance excitation of the molecule-surface vibrational mode. The observed H2, D2 cross-section ratio supports a picture where rotation-translation conversion of the resonance excited j=0→2 rotational transition contributes to the desorption of H2, while this channel is energetically closed for D2

Place, publisher, year, edition, pages
American Physical Society , 2009. Vol. 102, no Issue 15, 156104- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:kau:diva-15924DOI: 10.1103/PhysRevLett.102.156104OAI: oai:DiVA.org:kau-15924DiVA: diva2:573145
Available from: 2012-11-29 Created: 2012-11-29 Last updated: 2014-10-28Bibliographically approved

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CiteExportLink to record
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