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Electronic Doppler effect in resonant Auger decay of CO molecules upon excitation near a shake-up Pi resonance

Ristinmaa Sörensen, Stacey LU ; Kitajima, M.; Tanaka, T.; Hoshino, M.; Tanaka, H.; Tamenori, Y.; Sankari, R.; Piancastelli, M. N.; Ueda, K. and Velkov, Y., et al. (2007) In Physical Review A (Atomic, Molecular and Optical Physics) 76(6).
Abstract
We present an experimental observation of the electronic Doppler effect in resonant Auger spectra upon core excitation slightly above the carbon K edge of the CO molecule. Thus the electronic Doppler effect has been identified in above-threshold excitation, and in a transition of Pi symmetry. Ab initio calculations of the potential energy curves of the relevant states of CO and the wave packet technique have been employed to provide a theoretical background to the experimental studies. The weak feature around 299.4 eV in the photoabsorption spectrum, whose decay has been investigated by the present experiment, is assigned to double (core-valence) excitations to C 1s shake-up states vertical bar 1s(C)(-1)1 pi(-1)pi(*2)> with a strong... (More)
We present an experimental observation of the electronic Doppler effect in resonant Auger spectra upon core excitation slightly above the carbon K edge of the CO molecule. Thus the electronic Doppler effect has been identified in above-threshold excitation, and in a transition of Pi symmetry. Ab initio calculations of the potential energy curves of the relevant states of CO and the wave packet technique have been employed to provide a theoretical background to the experimental studies. The weak feature around 299.4 eV in the photoabsorption spectrum, whose decay has been investigated by the present experiment, is assigned to double (core-valence) excitations to C 1s shake-up states vertical bar 1s(C)(-1)1 pi(-1)pi(*2)> with a strong dissociative character, and the Doppler splitting of the atomic peak has been reproduced by the simulation. (Less)
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Physical Review A (Atomic, Molecular and Optical Physics)
volume
76
issue
6
publisher
American Physical Society (APS)
external identifiers
  • wos:000251985900062
  • scopus:37249052816
ISSN
1050-2947
DOI
10.1103/PhysRevA.76.062704
language
English
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yes
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b567ad16-236f-4115-9227-7cf00b06d266 (old id 1408351)
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2009-06-02 08:59:05
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2017-01-01 04:32:46
@article{b567ad16-236f-4115-9227-7cf00b06d266,
  abstract     = {We present an experimental observation of the electronic Doppler effect in resonant Auger spectra upon core excitation slightly above the carbon K edge of the CO molecule. Thus the electronic Doppler effect has been identified in above-threshold excitation, and in a transition of Pi symmetry. Ab initio calculations of the potential energy curves of the relevant states of CO and the wave packet technique have been employed to provide a theoretical background to the experimental studies. The weak feature around 299.4 eV in the photoabsorption spectrum, whose decay has been investigated by the present experiment, is assigned to double (core-valence) excitations to C 1s shake-up states vertical bar 1s(C)(-1)1 pi(-1)pi(*2)> with a strong dissociative character, and the Doppler splitting of the atomic peak has been reproduced by the simulation.},
  author       = {Ristinmaa Sörensen, Stacey and Kitajima, M. and Tanaka, T. and Hoshino, M. and Tanaka, H. and Tamenori, Y. and Sankari, R. and Piancastelli, M. N. and Ueda, K. and Velkov, Y. and Minkov, I. and Carravetta, V. and Gel'mukhanov, F.},
  issn         = {1050-2947},
  language     = {eng},
  number       = {6},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Electronic Doppler effect in resonant Auger decay of CO molecules upon excitation near a shake-up Pi resonance},
  url          = {http://dx.doi.org/10.1103/PhysRevA.76.062704},
  volume       = {76},
  year         = {2007},
}