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Resonant inelastic x-ray scattering and UV-VUV luminescence at the Be 1s edge in BeO

Kikas, A.; Kaambre, T.; Kooser, K.; Kuusik, I.; Kisand, V.; Nommiste, E.; Kirm, M.; Feldbach, E.; Ivanov, V. and Pustovarov, V., et al. (2010) In Journal of Physics: Condensed Matter1990-01-01+01:00 22(37).
Abstract
We carried out a combined study of UV-VUV luminescence and resonant x-ray emission from BeO single crystals with incident photon energies in the vicinity of the Be 1s absorption edge. The x-ray emission spectra show that at the Be 1s photoabsorption edge the lattice relaxation processes in the excitation site take place already on the timescale of the radiative decay of the core excitation. Comparison of the x-ray emission and the luminescence spectra indicates that the maximum energy loss of the process of lattice relaxation during the decay of inner-shell holes is similar to the loss that occurs in the self-trapping process of valence excitons. The possible decay channels of core excitations have been discussed and the mechanism for the... (More)
We carried out a combined study of UV-VUV luminescence and resonant x-ray emission from BeO single crystals with incident photon energies in the vicinity of the Be 1s absorption edge. The x-ray emission spectra show that at the Be 1s photoabsorption edge the lattice relaxation processes in the excitation site take place already on the timescale of the radiative decay of the core excitation. Comparison of the x-ray emission and the luminescence spectra indicates that the maximum energy loss of the process of lattice relaxation during the decay of inner-shell holes is similar to the loss that occurs in the self-trapping process of valence excitons. The possible decay channels of core excitations have been discussed and the mechanism for the creation of 5.2 eV luminescence at the photoabsorption resonances has been suggested. (Less)
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Journal of Physics: Condensed Matter1990-01-01+01:00
volume
22
issue
37
publisher
IOP Publishing
external identifiers
  • wos:000281422700014
  • scopus:77957067794
ISSN
1361-648X
DOI
10.1088/0953-8984/22/37/375505
language
English
LU publication?
yes
id
ffc9d3b5-8584-4186-a4ea-2b1b2c50895e (old id 1672343)
date added to LUP
2010-09-23 14:35:58
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2018-07-15 03:58:13
@article{ffc9d3b5-8584-4186-a4ea-2b1b2c50895e,
  abstract     = {We carried out a combined study of UV-VUV luminescence and resonant x-ray emission from BeO single crystals with incident photon energies in the vicinity of the Be 1s absorption edge. The x-ray emission spectra show that at the Be 1s photoabsorption edge the lattice relaxation processes in the excitation site take place already on the timescale of the radiative decay of the core excitation. Comparison of the x-ray emission and the luminescence spectra indicates that the maximum energy loss of the process of lattice relaxation during the decay of inner-shell holes is similar to the loss that occurs in the self-trapping process of valence excitons. The possible decay channels of core excitations have been discussed and the mechanism for the creation of 5.2 eV luminescence at the photoabsorption resonances has been suggested.},
  articleno    = {375505},
  author       = {Kikas, A. and Kaambre, T. and Kooser, K. and Kuusik, I. and Kisand, V. and Nommiste, E. and Kirm, M. and Feldbach, E. and Ivanov, V. and Pustovarov, V. and Martinson, Indrek},
  issn         = {1361-648X},
  language     = {eng},
  number       = {37},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Condensed Matter1990-01-01+01:00},
  title        = {Resonant inelastic x-ray scattering and UV-VUV luminescence at the Be 1s edge in BeO},
  url          = {http://dx.doi.org/10.1088/0953-8984/22/37/375505},
  volume       = {22},
  year         = {2010},
}