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A self-consistent optical potential theory for atoms in solids

Fujikawa, Takashi; Hatada, Keisuke; Yikegaki, Tetsuro and Hedin, Lars LU (1998) In Journal of Electron Spectroscopy and Related Phenomena 88-91. p.649-655
Abstract
We develop an approximation for the optical potential in a solid, valid at intermediate energies, i.e. energies greater than 50 eV. The present approximation for the optical potential builds on the GW-expression. We separate the RPA polarization propagator into a core electron and a valence electron, and can then achieve a corresponding separation of the optical potential. We apply this method to electron-Ne and -Ar elastic scatterings and find a satisfactory agreement with the observed results. We also study the importance of self-consistency and the sensitivity to a parameter, the average excitation energy.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Electron Spectroscopy and Related Phenomena
volume
88-91
pages
649 - 655
publisher
Elsevier
external identifiers
  • Scopus:17744415078
ISSN
0368-2048
DOI
10.1016/S0368-2048(97)00240-5
language
English
LU publication?
yes
id
f05eb79e-ac84-4d33-b6b1-55d650621132 (old id 8820986)
date added to LUP
2016-03-01 09:42:48
date last changed
2016-10-13 04:35:39
@misc{f05eb79e-ac84-4d33-b6b1-55d650621132,
  abstract     = {We develop an approximation for the optical potential in a solid, valid at intermediate energies, i.e. energies greater than 50 eV. The present approximation for the optical potential builds on the GW-expression. We separate the RPA polarization propagator into a core electron and a valence electron, and can then achieve a corresponding separation of the optical potential. We apply this method to electron-Ne and -Ar elastic scatterings and find a satisfactory agreement with the observed results. We also study the importance of self-consistency and the sensitivity to a parameter, the average excitation energy.},
  author       = {Fujikawa, Takashi and Hatada, Keisuke and Yikegaki, Tetsuro and Hedin, Lars},
  issn         = {0368-2048},
  language     = {eng},
  pages        = {649--655},
  publisher    = {ARRAY(0x962d4b8)},
  series       = {Journal of Electron Spectroscopy and Related Phenomena},
  title        = {A self-consistent optical potential theory for atoms in solids},
  url          = {http://dx.doi.org/10.1016/S0368-2048(97)00240-5},
  volume       = {88-91},
  year         = {1998},
}