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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents



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ID: 268482.0, Fritz-Haber-Institut / Molecular Physics
Exchange interaction effects in NO core level photoionization cross-sections
Authors:Rüdel, Andy; Hergenhahn, Uwe; Maier, Klaus; Rennie, Emma E.; Kugeler, Oliver; Viefhaus, Jens; Lin, P.; Luccese, R. R.; Bradshaw, Alexander M.
Language:English
Date of Publication (YYYY-MM-DD):2005
Title of Journal:New Journal of Physics
Journal Abbrev.:New J Phys
Volume:7
Sequence Number of Article:189
Copyright:1998-2006 Deutsche Physikalische Gesellschaft & Institute of Physics
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The effect of the exchange interaction in the photoionization continuum is investigated, using N 1s photoionization of NO into the 1s-12π (1Π) and (3Π) final states as an example. The separation in energy of these two final states is 1.41 eV. Significant differences in their partial photoionization cross-sections are observed over a wide range of energies and cannot be accounted for by the different multiplicity of the states. We suggest that the deviation of the 3Π/1Π cross-section ratio from the statistical weighting at intermediate energies is dominated by the difference in the final-state potential experienced by the photoelectron and at asymptotically high energies by the multiplet-dependent amount of intensity going into multi-electron (shake-up) processes. Calculations underpinning this point are presented. We also show supporting measurements of the 3Π/1Π cross-section ratio for O 1s ionization and the absolute photoabsorption cross-section for NO over a wide energy
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:MPI für Plasmaphysik/Office of the Director
Fritz-Haber-Institut/Molecular Physics
External Affiliations:Department of Chemistry, Texas A&M University, Box 30012, College Station, TX 77842-3012, USA
Identifiers:DOI:10.1088/1367-2630/7/1/189
URL:http://www.iop.org/EJ/abstract/1367-2630/7/1/189
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