Self-Consistent Dynamical Theory for the Anderson Lattice
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- Kim Chang-Il
- Department of Physics, Tohoku University
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- Kuramoto Yoshio
- Department of Applied Physics, Tohoku University
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- Kasuya Tadao
- Department of Physics, Tohoku University
書誌事項
- タイトル別名
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- Self Consistent Dynamical Theory for th
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説明
This paper presents formulation and results of a self-consistent dynamical theory which can describe the crossover from the local-moment state to the heavy-fermion state with decreasing temperatures. The theory is an extension of the non-crossing approximation (NCA) for the single-site model and incorporates the intersite interaction via self-consistent modification of the conduction-electron propagator. Detailed numerical results for single-particle excitations are presented which show that (i) the cooperative enhancement of the Kondo resonance occurs at temperatures higher than the Kondo temperature TK; (ii) a pseudogap develops around the energy of the Kondo resonance with decreasing temperatures; (iii) no new energy scale other than TK is generated in the heavy-fermion state.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 59 (7), 2414-2425, 1990
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204179034112
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- NII論文ID
- 110001960762
- 130003900696
- 210000095355
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1990JPSJ...59.2414K
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 3675699
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可