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

Kettunen, J. A.; Urpelainen, Samuli LU ; Heinasmaki, S. and Huttula, M. (2012) In Physical Review A (Atomic, Molecular and Optical Physics) 86(2).
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
86
issue
2
publisher
American Physical Society (APS)
external identifiers
  • wos:000307125600005
  • scopus:84864656028
ISSN
1050-2947
DOI
10.1103/PhysRevA.86.023201
language
English
LU publication?
yes
id
a982fb18-caf6-4f69-ba15-bb1eb98fdb8d (old id 3073584)
date added to LUP
2012-09-25 15:11:16
date last changed
2017-01-01 03:52:58
@article{a982fb18-caf6-4f69-ba15-bb1eb98fdb8d,
  abstract     = {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.},
  articleno    = {023201},
  author       = {Kettunen, J. A. and Urpelainen, Samuli and Heinasmaki, S. and Huttula, M.},
  issn         = {1050-2947},
  language     = {eng},
  number       = {2},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Dissociation of As-4 clusters following valence photoionization and 3d core excitation},
  url          = {http://dx.doi.org/10.1103/PhysRevA.86.023201},
  volume       = {86},
  year         = {2012},
}