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Auger Spectra of K+ L23 Excitations in Potassium Halides

Kikas, A. (author)
Estonian Academy of Sciences
Ausmees, A. (author)
Estonian Academy of Sciences
Elango, M. (author)
Estonian Academy of Sciences
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Andersen, J. N. (author)
Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
Nyholm, R. (author)
Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
Martinson, I. (author)
Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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 (creator_code:org_t)
2007-07-25
1991
English 4 s.
In: Europhysics Letters. - : IOP Publishing. - 0295-5075 .- 1286-4854. ; 15:6, s. 683-686
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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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