Auger Spectra of K+ L23 Excitations in Potassium Halides
(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.
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- author
- Kikas, A. ; Ausmees, A. ; Elango, M. ; Andersen, J. N. LU ; Nyholm, R. LU and Martinson, I. LU
- organization
- publishing date
- 1991-07-15
- 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
- 2021-01-03 11:24:00
@article{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.</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 = {{EDP Sciences}}, 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}}, doi = {{10.1209/0295-5075/15/6/021}}, volume = {{15}}, year = {{1991}}, }