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The influence of the sigma resonance on the Auger decay of core-ionized molecular nitrogen
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Soft X-Ray Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
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2008 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 456, no 1-3, 1-6 p.Article in journal (Refereed) Published
Abstract [en]

Auger spectra from the decay of core-ionized N-2 have been studied as a function of the exciting photon energy. Discrete features appear in the Auger spectrum when the photon energy is tuned to the shape-resonance region at 420 eV. The Auger spectra for two final dicationic states are studied; simulations of the contributions from the decay of the gerade and ungerade core-hole states are made based on a Franck-Condon picture including life time vibrational interference. We are able to reproduce the vibrational. ne structure in the Auger spectrum using a model where the coherent sum of the decay channels from the vibrationally-excited states are treated separately for the gerade and ungerade states.

Place, publisher, year, edition, pages
2008. Vol. 456, no 1-3, 1-6 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-114317DOI: 10.1016/j.cplett.2008.03.015ISI: 000255554600001OAI: oai:DiVA.org:uu-114317DiVA: diva2:293732
Available from: 2010-02-12 Created: 2010-02-12 Last updated: 2017-12-12Bibliographically approved

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