Structural Expansion for the Ground-State Energy of Simple Metals. II
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概要
- 論文の詳細を見る
A self-consistent treatment is given for the Green's function which determines the structure-dependent part of the ground-state energy for simple metals. An expansion in the resulting screened interactions is given exactly up fourth order. In addition to the previously examined one-electron terms (I), which are the most important ones, the present paper treats the next important terms which may be related to the first-order effect of the exchange energy due to inhomogeneous charge distribution. In fourth order of the expansion, the mentioned term shows the same singularity as the third-order one-electron term, Brovman and Kagan's singularity. It is proved that the Hartree-Fock result exaggerates the first-order exchange effect, most strikingly in the close vicinity of the singular point. Effect of the dynamical shielding on the considered term is also studied, particularly in the third-order term of the expansion.
- 理論物理学刊行会の論文
- 1980-05-25
著者
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Miyagi Hiroshi
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Nakamura Tuto
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Nagara Hitose
Department Of Material Physics Faculty Of Engineering Science Osaka Universitiy
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Miyagi Hiroshi
Department Of Material Physics Faculty Of Engineering Science Osaka Universitiy
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NAGARA Hitose
Department of Material Physics, Faculty of Engineering Science Osaka University
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Miyagi Hiroshi
Department of Material Physics,Faculty of Engineering Science,Osaka University
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