Kink Structure in the Quasiparticle Band of Doped Hubbard Systems
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- Kakehashi Yoshiro
- Department of Physics and Earth Sciences, Faculty of Science, University of Ryukyus
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- Fulde Peter
- Max-Planck-Institut für Physik komplexer Systeme
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By making use of the self-consistent projection operator method with high-momentum and high-energy resolutions, we find a kink structure in the quasiparticle excitation spectrum of the two-dimensional Hubbard model in the underdoped regime. The kink is caused by a mixing between the quasiparticle state and excitations with short-range antiferromagnetic order. We suggest that this might be the origin of the strong concentration dependence of the ‘kink’ found in La2−xSrxCuO4 (x=0.03–0.07).
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 74 (9), 2397-2399, 2005
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
- 1390001204188249344
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- NII論文ID
- 110002245716
- 210000105616
- 130004539401
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2005JPSJ...74.2397K
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 7438551
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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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- CiNii Articles
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- 使用不可
