Advanced

Auger Spectra of K+ L23 Excitations in Potassium Halides

Kikas, A.; Ausmees, A.; Elango, M.; Andersen, J. N. LU ; Nyholm, R. LU and Martinson, I. LU (1991) In Europhysics Letters 15(6). p.683-686
Abstract

The L23M23M23 Auger spectra of K+ L23 excitation in potassium halides are measured using photon excitation with different energies in the region of the K+ L23 absorption edge (around 300 eV). It is shown that the screening of the two 3p holes caused by the collapsed 3d electron of the K+ L23 exciton leads to a considerable shift (by about (6÷7) eV) of the K+ L23M23M23 Auger bands to higher energies. Only the low-energy component of the crystal-field-split K+ 3d orbital forms a genuine bound state with 2p holes, whereas its high-energy component lies in the conduction band continuum and... (More)

The L23M23M23 Auger spectra of K+ L23 excitation in potassium halides are measured using photon excitation with different energies in the region of the K+ L23 absorption edge (around 300 eV). It is shown that the screening of the two 3p holes caused by the collapsed 3d electron of the K+ L23 exciton leads to a considerable shift (by about (6÷7) eV) of the K+ L23M23M23 Auger bands to higher energies. Only the low-energy component of the crystal-field-split K+ 3d orbital forms a genuine bound state with 2p holes, whereas its high-energy component lies in the conduction band continuum and behaves like a shape resonance. © 1991 IOP Publishing Ltd.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
in
Europhysics Letters
volume
15
issue
6
pages
4 pages
publisher
EDP Sciences
external identifiers
  • Scopus:84919216727
ISSN
0295-5075
DOI
10.1209/0295-5075/15/6/021
language
English
LU publication?
yes
id
095348ed-8454-469f-aaf7-d53d67416599
date added to LUP
2016-05-17 14:35:44
date last changed
2016-05-21 12:40:23
@misc{095348ed-8454-469f-aaf7-d53d67416599,
  abstract     = {<p>The L<sub>23</sub>M<sub>23</sub>M<sub>23</sub> Auger spectra of K<sup>+</sup> L<sub>23</sub> excitation in potassium halides are measured using photon excitation with different energies in the region of the K<sup>+</sup> L<sub>23</sub> absorption edge (around 300 eV). It is shown that the screening of the two 3p holes caused by the collapsed 3d electron of the K<sup>+</sup> L<sub>23</sub> exciton leads to a considerable shift (by about (6÷7) eV) of the K<sup>+</sup> L<sub>23</sub>M<sub>23</sub>M<sub>23</sub> Auger bands to higher energies. Only the low-energy component of the crystal-field-split K<sup>+</sup> 3d orbital forms a genuine bound state with 2p holes, whereas its high-energy component lies in the conduction band continuum and behaves like a shape resonance. © 1991 IOP Publishing Ltd.</p>},
  author       = {Kikas, A. and Ausmees, A. and Elango, M. and Andersen, J. N. and Nyholm, R. and Martinson, I.},
  issn         = {0295-5075},
  language     = {eng},
  month        = {07},
  number       = {6},
  pages        = {683--686},
  publisher    = {ARRAY(0xa297ba8)},
  series       = {Europhysics Letters},
  title        = {Auger Spectra of K<sup>+</sup> L<sub>23</sub> Excitations in Potassium Halides},
  url          = {http://dx.doi.org/10.1209/0295-5075/15/6/021},
  volume       = {15},
  year         = {1991},
}