Incomplete Relaxation in a model problem for the Auger process
(1974) In Il Nuovo Cimento B 23(1). p.76-89- Abstract
- Excitation of a core electron and the subsequent emission of an Auger electron is described in a simplified model, where the core electrons couple only to the plasma oscillations of the conduction electrons and not to individual electron-hole excitations. Results are evaluated to lowest nontrivial order, namely when only terms linear in the interaction with the exciting probe and linear in the Auger coupling are kept. This leads to a four-particle Green’s function which can be evaluated exactly within the present simple model. It is shown explicitly that for long core-hole lifetimes the Auger spectrum is the same as in the two-step approximation (complete relaxation). The possibilities of high-energy satellites in the case of short... (More)
- Excitation of a core electron and the subsequent emission of an Auger electron is described in a simplified model, where the core electrons couple only to the plasma oscillations of the conduction electrons and not to individual electron-hole excitations. Results are evaluated to lowest nontrivial order, namely when only terms linear in the interaction with the exciting probe and linear in the Auger coupling are kept. This leads to a four-particle Green’s function which can be evaluated exactly within the present simple model. It is shown explicitly that for long core-hole lifetimes the Auger spectrum is the same as in the two-step approximation (complete relaxation). The possibilities of high-energy satellites in the case of short core-hole lifetimes are discussed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8772445
- author
- Almbladh, Carl-Olof LU
- organization
- publishing date
- 1974
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Auger spectra, many-body theory, Core eletron spectroscopy
- in
- Il Nuovo Cimento B
- volume
- 23
- issue
- 1
- pages
- 76 - 89
- publisher
- Società italiana di fisica
- external identifiers
-
- scopus:51649189379
- ISSN
- 1124-187X
- language
- English
- LU publication?
- yes
- id
- 3368feb2-3630-4f4b-a8c1-309dc77efe54 (old id 8772445)
- date added to LUP
- 2016-04-04 14:21:02
- date last changed
- 2021-01-03 10:14:39
@article{3368feb2-3630-4f4b-a8c1-309dc77efe54,
abstract = {{Excitation of a core electron and the subsequent emission of an Auger electron is described in a simplified model, where the core electrons couple only to the plasma oscillations of the conduction electrons and not to individual electron-hole excitations. Results are evaluated to lowest nontrivial order, namely when only terms linear in the interaction with the exciting probe and linear in the Auger coupling are kept. This leads to a four-particle Green’s function which can be evaluated exactly within the present simple model. It is shown explicitly that for long core-hole lifetimes the Auger spectrum is the same as in the two-step approximation (complete relaxation). The possibilities of high-energy satellites in the case of short core-hole lifetimes are discussed.}},
author = {{Almbladh, Carl-Olof}},
issn = {{1124-187X}},
keywords = {{Auger spectra; many-body theory; Core eletron spectroscopy}},
language = {{eng}},
number = {{1}},
pages = {{76--89}},
publisher = {{Società italiana di fisica}},
series = {{Il Nuovo Cimento B}},
title = {{Incomplete Relaxation in a model problem for the Auger process}},
volume = {{23}},
year = {{1974}},
}