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Photofragmentation of cyanogen upon carbon and nitrogen K-shell excitation by partial ion yield experiments

Öhrwall, Gunnar LU ; Stolte, W. C.; Guillemin, R.; Yu, S-W; Piancastelli, M. N. and Lindle, D. W. (2010) In Journal of Physics B: Atomic, Molecular and Optical Physics 43(9).
Abstract
Partial ion yield spectroscopy was used to study fragmentation processes in cyanogen after C 1s and N 1s photoexcitation. The interpretation of the core excitation spectrum mostly follows the literature, but the high resolution has in some cases allowed a more detailed assignment. Using the fact that in Rydberg states there is an intensity increase as the fragmentation process becomes more extensive compared to valence orbitals, we have been able to distinguish resonances with valence and Rydberg character. Furthermore, we have been able to assign features in the ionization continuum as arising from double excitations or shape resonances, by observation of the suppression of anion yield at shape resonances.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
43
issue
9
publisher
IOP Publishing
external identifiers
  • wos:000277077100008
  • scopus:77951639630
ISSN
0953-4075
DOI
10.1088/0953-4075/43/9/095201
language
English
LU publication?
yes
id
9dad27e3-c110-4364-ab91-e930182ef358 (old id 1619376)
date added to LUP
2010-06-18 16:53:17
date last changed
2018-05-29 12:12:56
@article{9dad27e3-c110-4364-ab91-e930182ef358,
  abstract     = {Partial ion yield spectroscopy was used to study fragmentation processes in cyanogen after C 1s and N 1s photoexcitation. The interpretation of the core excitation spectrum mostly follows the literature, but the high resolution has in some cases allowed a more detailed assignment. Using the fact that in Rydberg states there is an intensity increase as the fragmentation process becomes more extensive compared to valence orbitals, we have been able to distinguish resonances with valence and Rydberg character. Furthermore, we have been able to assign features in the ionization continuum as arising from double excitations or shape resonances, by observation of the suppression of anion yield at shape resonances.},
  author       = {Öhrwall, Gunnar and Stolte, W. C. and Guillemin, R. and Yu, S-W and Piancastelli, M. N. and Lindle, D. W.},
  issn         = {0953-4075},
  language     = {eng},
  number       = {9},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  title        = {Photofragmentation of cyanogen upon carbon and nitrogen K-shell excitation by partial ion yield experiments},
  url          = {http://dx.doi.org/10.1088/0953-4075/43/9/095201},
  volume       = {43},
  year         = {2010},
}