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Localized versus delocalized excitations just above the 3d threshold in krypton clusters studied by Auger electron spectroscopy

Tchaplyguine, Maxim LU ; Kivimäki, A; Peredkov, Sergey LU ; Ristinmaa Sörensen, Stacey LU ; Rosso, Aldana LU ; Öhrwall, Gunnar LU ; Schulz, J; Lundwall, M; Björneholm, Olle LU and Mårtensson, N., et al. (2007) In Journal of Chemical Physics 127(12).
Abstract
We present Auger spectroscopy studies of large krypton clusters excited by soft x-ray photons with energies on and just above the 3d(5/2) ionization threshold. The deexcitation spectra contain new features as compared to the spectra measured both below and far above threshold. Possible origins of these extra features, which stay at constant kinetic energies, are discussed: (1) normal Auger process with a postcollision interaction induced energy shift, (2) recapture of photoelectrons into high Rydberg orbitals after Auger decay, and (3) excitation into the conduction band (or "internal" ionization) followed by Auger decay. The first two schemes are ruled out, hence internal ionization remains the most probable explanation. (C) 2007 American... (More)
We present Auger spectroscopy studies of large krypton clusters excited by soft x-ray photons with energies on and just above the 3d(5/2) ionization threshold. The deexcitation spectra contain new features as compared to the spectra measured both below and far above threshold. Possible origins of these extra features, which stay at constant kinetic energies, are discussed: (1) normal Auger process with a postcollision interaction induced energy shift, (2) recapture of photoelectrons into high Rydberg orbitals after Auger decay, and (3) excitation into the conduction band (or "internal" ionization) followed by Auger decay. The first two schemes are ruled out, hence internal ionization remains the most probable explanation. (C) 2007 American Institute of Physics. (Less)
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Journal of Chemical Physics
volume
127
issue
12
publisher
American Institute of Physics
external identifiers
  • wos:000249787300026
  • scopus:34848823198
ISSN
0021-9606
DOI
10.1063/1.2770460
language
English
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yes
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d0106ace-e0ff-40b1-ba3b-795d2e7eb7fa (old id 764136)
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2008-01-08 17:01:57
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@article{d0106ace-e0ff-40b1-ba3b-795d2e7eb7fa,
  abstract     = {We present Auger spectroscopy studies of large krypton clusters excited by soft x-ray photons with energies on and just above the 3d(5/2) ionization threshold. The deexcitation spectra contain new features as compared to the spectra measured both below and far above threshold. Possible origins of these extra features, which stay at constant kinetic energies, are discussed: (1) normal Auger process with a postcollision interaction induced energy shift, (2) recapture of photoelectrons into high Rydberg orbitals after Auger decay, and (3) excitation into the conduction band (or "internal" ionization) followed by Auger decay. The first two schemes are ruled out, hence internal ionization remains the most probable explanation. (C) 2007 American Institute of Physics.},
  articleno    = {124314},
  author       = {Tchaplyguine, Maxim and Kivimäki, A and Peredkov, Sergey and Ristinmaa Sörensen, Stacey and Rosso, Aldana and Öhrwall, Gunnar and Schulz, J and Lundwall, M and Björneholm, Olle and Mårtensson, N. and Rander, T. and Lindblad, Andreas},
  issn         = {0021-9606},
  language     = {eng},
  number       = {12},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Localized versus delocalized excitations just above the 3d threshold in krypton clusters studied by Auger electron spectroscopy},
  url          = {http://dx.doi.org/10.1063/1.2770460},
  volume       = {127},
  year         = {2007},
}