A Quantum Theoy of Double Exchange. II. The Green Function of a Hole
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- Kubo Kenn
- Department of Physics, University of Tokyo
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説明
The one-particle states of a hole in a double exchange ferromagnet are discussed by making use of the Green function. An approximate Green function of a hole in a system with randomly oriented localized spins is obtained by applying the CPA extended as to take into account the effects of exchange scatterings. The density of states of a hole is numerically calculated for a simple case. The narrowing of the width of the density of states is examined for the s.c. lattice. In the case S=1⁄2, which is equivalent to the Hubbard model with infinitely strong correlations, the present result agrees with that of Kawabata.
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 33 (4), 929-935, 1972
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
- 1390001204190256640
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- NII論文ID
- 210000083488
- 130003893534
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- BIBCODE
- 1972JPSJ...33..929K
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- COI
- 1:CAS:528:DyaE38XlsFOqu74%3D
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- ISSN
- 13474073
- 00319015
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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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