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On the theory of photoemission

Almbladh, Carl-Olof LU (1985) In Physica Scripta 32. p.341-352
Abstract (Swedish)
This paper is concerned with the a priori theory of the photoemission process in solids. Scattering-theoretical and response-theoretical approaches are discussed and a new demonstration of their equivalence is given. The elastic photoemission spectrum is analyzed in detail and an expression exact to all orders in interparticle interaction is obtained. This expression is similar to the renormalized three-current correlation formula used by Pendry and by others but includes also a screening and exchange-correlation correction to the optical field. The loss part of the spectrum is also discussed and a new quantum-mechanical approximation for the energy losses is obtained. For long mean free paths this correctly reduces to a three-step model... (More)
This paper is concerned with the a priori theory of the photoemission process in solids. Scattering-theoretical and response-theoretical approaches are discussed and a new demonstration of their equivalence is given. The elastic photoemission spectrum is analyzed in detail and an expression exact to all orders in interparticle interaction is obtained. This expression is similar to the renormalized three-current correlation formula used by Pendry and by others but includes also a screening and exchange-correlation correction to the optical field. The loss part of the spectrum is also discussed and a new quantum-mechanical approximation for the energy losses is obtained. For long mean free paths this correctly reduces to a three-step model in which the energy dissipation is given by a semi-classical transport equation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physica Scripta
volume
32
pages
341 - 352
publisher
Institute of Physics Publishing Ltd.
ISSN
0031-8949
language
English
LU publication?
yes
id
51b66cae-8647-4fb5-9d56-5a0188a76b4c (old id 8772796)
date added to LUP
2016-02-27 00:41:05
date last changed
2016-09-13 15:20:04
@misc{51b66cae-8647-4fb5-9d56-5a0188a76b4c,
  abstract     = {This paper is concerned with the a priori theory of the photoemission process in solids. Scattering-theoretical and response-theoretical approaches are discussed and a new demonstration of their equivalence is given. The elastic photoemission spectrum is analyzed in detail and an expression exact to all orders in interparticle interaction is obtained. This expression is similar to the renormalized three-current correlation formula used by Pendry and by others but includes also a screening and exchange-correlation correction to the optical field. The loss part of the spectrum is also discussed and a new quantum-mechanical approximation for the energy losses is obtained. For long mean free paths this correctly reduces to a three-step model in which the energy dissipation is given by a semi-classical transport equation.},
  author       = {Almbladh, Carl-Olof},
  issn         = {0031-8949},
  language     = {eng},
  pages        = {341--352},
  publisher    = {ARRAY(0x90f1370)},
  series       = {Physica Scripta},
  title        = {On the theory of photoemission},
  volume       = {32},
  year         = {1985},
}