Title
Anion formation moderated by post-collision interaction following core-level photoexcitation of CO
Document Type
Article
Publication Date
9-2002
Publication Title
Journal of Physics B: Atomic, molecular and optical physics
Publisher
Institute of Physics Publishing
Volume
35
Issue
17
First page number:
L381
Last page number:
L386
Abstract
The photon-energy dependence of the oxygen-anion (O−) yield has been measured following photoexcitation of CO just above both the C and O K-shell ionization thresholds. The observed exponentially decaying yields above both edges are attributed to a post-collision interaction (PCI) between the emitted photoelectron and the CO molecule. Using a modified semi-classical atomic model, the near-threshold spectra can be reproduced if an energy shift is included. The shift in photon energy above the C K edge is greater than above the O K edge. The difference is attributed to a site-dependent PCI effect related to the polarity of the valence orbitals of the CO molecule.
Keywords
Conduction electrons; Dipole moments; Nuclear physics; Photoionization
Disciplines
Atomic, Molecular and Optical Physics | Nuclear | Physical Chemistry
Language
English
Permissions
Use Find in Your Library, contact the author, or use interlibrary loan to garner a copy of the article. Publisher copyright policy allows author to archive post-print (author’s final manuscript). When post-print is available or publisher policy changes, the article will be deposited
Repository Citation
Hansen, D.,
Stolte, W. C.,
Hemmers, O.,
Guillemin, R.,
Lindle, D. W.
(2002).
Anion formation moderated by post-collision interaction following core-level photoexcitation of CO.
Journal of Physics B: Atomic, molecular and optical physics, 35(17),
L381-L386.