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Application of an atomic relaxation model for the interpretation of O1s to Rydberg excited Auger electron spectra of molecular oxygen

Ristinmaa Sörensen, Stacey LU ; Tanaka, T; Feifel, R; Eland, JHD; Kitajima, M; Tanaka, H; Sankari, R; De Fanis, A; Piancastelli, MN and Karlsson, L, et al. (2004) In Chemical Physics Letters 398(1-3). p.168-174
Abstract
Resonant and normal Auger electron spectra associated with an O1s initial vacancy of the O-2 molecule have been recorded using photon energies of 541.80, 541.97 and 650 eV. The resonant Auger spectra obtained at 541.80 and 541.97 eV are interpreted as composed essentially of two characteristic parts, one between 10 and 35 eV binding energy reminiscent to direct photoionisation, and another, above 35 eV, associated primarily with spectator decay of the intermediate core-hole state. The spectra above 35 eV owe some similarity to the ordinary Auger electron spectrum recorded at 650 eV, and an interpretation is made in terms of Rydberg series in the cation converging towards the dicationic ionisation limits. The interpretation is based on a... (More)
Resonant and normal Auger electron spectra associated with an O1s initial vacancy of the O-2 molecule have been recorded using photon energies of 541.80, 541.97 and 650 eV. The resonant Auger spectra obtained at 541.80 and 541.97 eV are interpreted as composed essentially of two characteristic parts, one between 10 and 35 eV binding energy reminiscent to direct photoionisation, and another, above 35 eV, associated primarily with spectator decay of the intermediate core-hole state. The spectra above 35 eV owe some similarity to the ordinary Auger electron spectrum recorded at 650 eV, and an interpretation is made in terms of Rydberg series in the cation converging towards the dicationic ionisation limits. The interpretation is based on a relaxation model introduced earlier for atomic resonant Auger spectra. The assignments of the resonant spectra assume that the relevant intermediate neutral states at 541.80 and 541.97 eV governing the Auger decay are essentially the v = 0 and 1 vibrational components of the (O1s) ((4)Sigma(u)(-)) 4psigma Rydberg state. Arguments for this interpretation are given. (Less)
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publication status
published
subject
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Chemical Physics Letters
volume
398
issue
1-3
pages
168 - 174
publisher
Elsevier
external identifiers
  • wos:000224720300030
  • scopus:6044242222
ISSN
0009-2614
DOI
10.1016/j.cplett.2004.09.048
language
English
LU publication?
yes
id
d11706c6-7b7f-40b1-8574-6db456e3f696 (old id 262521)
date added to LUP
2007-10-26 10:57:15
date last changed
2017-06-25 04:23:01
@article{d11706c6-7b7f-40b1-8574-6db456e3f696,
  abstract     = {Resonant and normal Auger electron spectra associated with an O1s initial vacancy of the O-2 molecule have been recorded using photon energies of 541.80, 541.97 and 650 eV. The resonant Auger spectra obtained at 541.80 and 541.97 eV are interpreted as composed essentially of two characteristic parts, one between 10 and 35 eV binding energy reminiscent to direct photoionisation, and another, above 35 eV, associated primarily with spectator decay of the intermediate core-hole state. The spectra above 35 eV owe some similarity to the ordinary Auger electron spectrum recorded at 650 eV, and an interpretation is made in terms of Rydberg series in the cation converging towards the dicationic ionisation limits. The interpretation is based on a relaxation model introduced earlier for atomic resonant Auger spectra. The assignments of the resonant spectra assume that the relevant intermediate neutral states at 541.80 and 541.97 eV governing the Auger decay are essentially the v = 0 and 1 vibrational components of the (O1s) ((4)Sigma(u)(-)) 4psigma Rydberg state. Arguments for this interpretation are given.},
  author       = {Ristinmaa Sörensen, Stacey and Tanaka, T and Feifel, R and Eland, JHD and Kitajima, M and Tanaka, H and Sankari, R and De Fanis, A and Piancastelli, MN and Karlsson, L and Ueda, K},
  issn         = {0009-2614},
  language     = {eng},
  number       = {1-3},
  pages        = {168--174},
  publisher    = {Elsevier},
  series       = {Chemical Physics Letters},
  title        = {Application of an atomic relaxation model for the interpretation of O1s to Rydberg excited Auger electron spectra of molecular oxygen},
  url          = {http://dx.doi.org/10.1016/j.cplett.2004.09.048},
  volume       = {398},
  year         = {2004},
}