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Many-Body Theory of Auger Processes in Metals and Semiconductors

Almbladh, Carl-Olof LU and Morales, Alvaro Luis (1988) 1. p.317-328
Abstract
Auger spectra of solids arise from radiationless decay of innershell vacancies created by x-ray or electron bombardment. In a corevalence-valence (CVV) Auger process, for instance, one valence electron is filling the core hole while another valence electron is ejected and carries away the excess energy. The core hole is essentially dispersionless, and thus the spectrum of emitted electrons would, in the simplest one-electron picture, reflect the self-folded valence-electron state density. Such a simple model is, of course, grossly oversimplified, and the importance of matrix element effects has been demonstrated by several authors.1 However, no detailed investigation of many-body effects has been presented thus far for sp-bonded materials,... (More)
Auger spectra of solids arise from radiationless decay of innershell vacancies created by x-ray or electron bombardment. In a corevalence-valence (CVV) Auger process, for instance, one valence electron is filling the core hole while another valence electron is ejected and carries away the excess energy. The core hole is essentially dispersionless, and thus the spectrum of emitted electrons would, in the simplest one-electron picture, reflect the self-folded valence-electron state density. Such a simple model is, of course, grossly oversimplified, and the importance of matrix element effects has been demonstrated by several authors.1 However, no detailed investigation of many-body effects has been presented thus far for sp-bonded materials, and the current view is that one electron theory and bulk wavefunctions suffice to explain the experimental results. (Less)
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Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Recent Progress in Many-Body Theories
editor
Kallio, A. J. ; Pajanne, E. and Bishop, R. F.
volume
1
pages
317 - 328
publisher
Springer
ISBN
978-1-4613-0973-4
language
English
LU publication?
yes
id
c2180303-b41d-475f-ab8b-307199028fd5 (old id 8773984)
date added to LUP
2016-04-04 10:42:18
date last changed
2018-11-21 21:00:19
@inbook{c2180303-b41d-475f-ab8b-307199028fd5,
  abstract     = {Auger spectra of solids arise from radiationless decay of innershell vacancies created by x-ray or electron bombardment. In a corevalence-valence (CVV) Auger process, for instance, one valence electron is filling the core hole while another valence electron is ejected and carries away the excess energy. The core hole is essentially dispersionless, and thus the spectrum of emitted electrons would, in the simplest one-electron picture, reflect the self-folded valence-electron state density. Such a simple model is, of course, grossly oversimplified, and the importance of matrix element effects has been demonstrated by several authors.1 However, no detailed investigation of many-body effects has been presented thus far for sp-bonded materials, and the current view is that one electron theory and bulk wavefunctions suffice to explain the experimental results.},
  author       = {Almbladh, Carl-Olof and Morales, Alvaro Luis},
  booktitle    = {Recent Progress in Many-Body Theories},
  editor       = {Kallio, A. J. and Pajanne, E. and Bishop, R. F.},
  isbn         = {978-1-4613-0973-4},
  language     = {eng},
  pages        = {317--328},
  publisher    = {Springer},
  title        = {Many-Body Theory of Auger Processes in Metals and Semiconductors},
  volume       = {1},
  year         = {1988},
}