Photoinduced Metallic Properties of One-Dimensional Strongly Correlated Electron Systems
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- Maeshima Nobuya
- Department of Chemistry, Tohoku University Institute for Molecular Science
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- Yonemitsu Kenji
- Institute for Molecular Science Graduate University for Advanced Studies
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説明
We study photoinduced optical responses of one-dimensional strongly correlated electron systems. Optical conductivity spectra are calculated for the ground and photoexcited states in a one-dimensional Hubbard model at half filling by the exact diagonalization method. It is found that, in the Mott insulator phase, the photoexcited state has large spectral weights including the Drude weight below the optical gap. As a consequence, the spectral weight above the optical gap is markedly reduced. These results imply that a metallic state is induced by photoexcitation. A comparison between the photoexcited and hole-doped states shows that photoexcitation is similar to chemical doping.
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 (10), 2671-2674, 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
- 1390282679164999936
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- NII論文ID
- 110002250631
- 210000105671
- 130004538981
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2005JPSJ...74.2671M
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- COI
- 1:CAS:528:DC%2BD2MXht12gsb%2FJ
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 7475833
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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