A self-consistent optical potential theory for atoms in solids
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8820986
- author
- Fujikawa, Takashi ; Hatada, Keisuke ; Yikegaki, Tetsuro and Hedin, Lars LU
- organization
- publishing date
- 1998
- 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}}, }