Theory of Atomic Optical Potential in Solid Application to Electron-Helium Scattering
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概要
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We develop an approximation for the optical potential in a solid valid at intermediate energies, i.e., above about 50 eV. The present approximation for the optical potential is based on GW-expression. We separate the RPA polarization propagator into a core-electron and a valence-electron part, and can then achieve a corresponding separation of the optical potential. We apply this method to electron-He elastic scattering, and we find satisfactory agreement with the observed results. We also study the importance of self-consistency, and the sensitivity to a parameter, average excitation energy.
- 社団法人日本物理学会の論文
- 1995-07-15
著者
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HEDIN Lars
Department of Theoretical Physics,Lund University
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Hedin L
Lund大理論物理
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Hedin Lars
Lund大理論物理
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Hedin Lars
Max-planck-institute Fur Festkorperforschung
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FUJIKAWA Takashi
Faculty of Engineering,Yokohama National University
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Yikegaki Tetsuro
Tokyo Research Laboratory, TOSOH Corporation
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Yikegaki Tetsuro
Tokyo Research Laboratory Tosoh Corporation
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Fujikawa Takashi
Faculty Of Engineering Yokohama National University
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Fujikawa Takashi
Faculty Of Agriculture Shizuoka University
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