Dynamic Exponent of<i><i>t</i></i>-<i><i>J</i></i>and<i><i>t</i></i>-<i><i>J</i></i>-<i><i>W</i></i>Model
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- Tsunetsugu Hirokazu
- Institute of Applied Physics, University of Tsukuba, Tsukuba 305–8573
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- Imada Masatoshi
- Institute for Solid State Physics, University of Tokyo, Tokyo 106–8666
書誌事項
- タイトル別名
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- Dynamic Exponent of t-J and t-J-W Model
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説明
Drude weight of optical conductivity is calculated at zero temperature by exact diagonalization for the two-dimensional t-J model with the two-particle term, W. For the ordinary t-J model with W=0, the scaling of the Drude weight D ∝ δ2 for small doping concentration δ is obtained, which indicates anomalous dynamic exponent z=4 of the Mott transition.When W is switched on, the dynamic exponent recovers its conventional value z=2. This corresponds to an incoherent-to-coherent transition associated with the switching of the two-particle transfer.
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 67 (6), 1864-1867, 1998
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
- 1390001204190972288
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- NII論文ID
- 130004536679
- 110001978535
- 210000100880
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 4514418
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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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- NDLサーチ
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