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Resonant inelastic x-ray scattering at the F 1s photoabsorption edge in LiF: Interplay of excitonic and conduction states, and Stokes' doubling

Kikas, A; Käämbre, Tanel LU ; Saar, A; Kooser, K; Nommiste, E; Martinson, Indrek LU ; Kimberg, V; Polyutov, Sergey LU and Gel'mukhanov, F (2004) In Physical Review B (Condensed Matter and Materials Physics) 70(8).
Abstract
The excitation-decay processes at the F 1s photoabsorption edge in LiF crystal are studied using resonant inelastic x-ray scattering spectroscopy. The Raman-type linear dispersion and the narrowing of the x-ray fluorescence peak are observed at resonant excitation. A theoretical model based on the Kramers-Heisenberg formula describes well the main features in fluorescence spectra and allows one to separate the contributions of the exciton and the conduction states in the scattering spectra. At the same time, the role of the shape of the spectral distribution within the incident radiation is emphasized as being critically sensitive to the number, kind, and onset of the spectral features which finally appear in the scattering spectra at a... (More)
The excitation-decay processes at the F 1s photoabsorption edge in LiF crystal are studied using resonant inelastic x-ray scattering spectroscopy. The Raman-type linear dispersion and the narrowing of the x-ray fluorescence peak are observed at resonant excitation. A theoretical model based on the Kramers-Heisenberg formula describes well the main features in fluorescence spectra and allows one to separate the contributions of the exciton and the conduction states in the scattering spectra. At the same time, the role of the shape of the spectral distribution within the incident radiation is emphasized as being critically sensitive to the number, kind, and onset of the spectral features which finally appear in the scattering spectra at a particular incident photon energy, particularly in the subthreshold excitation region. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
70
issue
8
publisher
American Physical Society
external identifiers
  • wos:000223716700024
  • scopus:19544367407
ISSN
1098-0121
DOI
10.1103/PhysRevB.70.085102
language
English
LU publication?
yes
id
115006df-7d69-4fb4-9717-75461c2539b4 (old id 268347)
date added to LUP
2007-10-23 18:42:25
date last changed
2017-08-27 05:35:25
@article{115006df-7d69-4fb4-9717-75461c2539b4,
  abstract     = {The excitation-decay processes at the F 1s photoabsorption edge in LiF crystal are studied using resonant inelastic x-ray scattering spectroscopy. The Raman-type linear dispersion and the narrowing of the x-ray fluorescence peak are observed at resonant excitation. A theoretical model based on the Kramers-Heisenberg formula describes well the main features in fluorescence spectra and allows one to separate the contributions of the exciton and the conduction states in the scattering spectra. At the same time, the role of the shape of the spectral distribution within the incident radiation is emphasized as being critically sensitive to the number, kind, and onset of the spectral features which finally appear in the scattering spectra at a particular incident photon energy, particularly in the subthreshold excitation region.},
  author       = {Kikas, A and Käämbre, Tanel and Saar, A and Kooser, K and Nommiste, E and Martinson, Indrek and Kimberg, V and Polyutov, Sergey and Gel'mukhanov, F},
  issn         = {1098-0121},
  language     = {eng},
  number       = {8},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Resonant inelastic x-ray scattering at the F 1s photoabsorption edge in LiF: Interplay of excitonic and conduction states, and Stokes' doubling},
  url          = {http://dx.doi.org/10.1103/PhysRevB.70.085102},
  volume       = {70},
  year         = {2004},
}