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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
; ; and
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
additional info
doi:10.1016/S0368-2048(97)00240-5
id
f05eb79e-ac84-4d33-b6b1-55d650621132 (old id 8820986)
date added to LUP
2016-04-04 09:42:27
date last changed
2022-01-29 19:10:26
@article{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    = {{Elsevier}},
  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}},
  doi          = {{10.1016/S0368-2048(97)00240-5}},
  volume       = {{88-91}},
  year         = {{1998}},
}