Title

Anion Formation Moderated by Post-sollision 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.

Controlled Subject

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

Rights

IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

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