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Dissociation of As-4 clusters following valence photoionization and 3d core excitation

På svenska

Author

  • J. A. Kettunen
  • Samuli Urpelainen
  • S. Heinasmaki
  • M. Huttula

Summary, in English

The VUV-induced photofragmentation of As-4 clusters was studied using photoelectron-photoion-coincidence (PEPICO) spectroscopy. The fragmentation pathways subsequent to outer and inner valence photoionization and resonant photoexcitation were studied by examining the cationic production as a function of electron energy. In addition, regular photoelectron spectroscopy and partial ion yield absorption spectroscopy were employed. In order to enhance the weak signal from the inner valence states, resonant core 3d excitation was used in the PEPICO experiment. The fragmentation pathways were inspected with the aid of ab initio and thermochemical calculations. The many-electron effects were found to play a major role in the observed inner valence structure and resulting photofragmentation.

Department/s

Publishing year

2012

Language

English

Publication/Series

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

86

Issue

2

Document type

Journal article

Publisher

American Physical Society

Topic

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1050-2947