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  1. 050 理学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

Heavy-Electron Formation and Polaron-Bipolaron Transition in the Anharmonic Holstein Model

http://hdl.handle.net/10191/26827
7093a6f2-e549-42a4-8d91-c4655769ebb0
名前 / ファイル ライセンス アクション
974.pdf 974.pdf (679.9 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-04-15
タイトル
タイトル Heavy-Electron Formation and Polaron-Bipolaron Transition in the Anharmonic Holstein Model
タイトル
言語 en
タイトル Heavy-Electron Formation and Polaron-Bipolaron Transition in the Anharmonic Holstein Model
言語
言語 eng
キーワード
主題Scheme Other
主題 heavy electron
キーワード
主題Scheme Other
主題 anharmonicity
キーワード
主題Scheme Other
主題 rattling
キーワード
主題Scheme Other
主題 bipolaron
キーワード
主題Scheme Other
主題 dynamical mean-field theory
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Fuse, Takahiro

× Fuse, Takahiro

WEKO 7105

Fuse, Takahiro

Search repository
Ono, Yoshiaki

× Ono, Yoshiaki

WEKO 62

Ono, Yoshiaki

Search repository
Hotta, Takashi

× Hotta, Takashi

WEKO 7107

Hotta, Takashi

Search repository
抄録
内容記述タイプ Abstract
内容記述 The emergence of the bipolaronic phase and the formation of the heavy-electron state in the anharmonic Holstein model are investigated using the dynamical mean-field theory in combination with the exact diagonalization method. For a weak anharmonicity, it is confirmed that the first-order polaron–bipolaron transition occurs from the observation of a discontinuity in the behavior of several physical quantities. When the anharmonicity is gradually increased, the polaron–bipolaron transition temperature is reduced as well as the critical values of the electron–phonon coupling constant for polaron–bipolaron transition. For a strong anharmonicity, the polaron–bipolaron transition eventually changes to a crossover behavior. The effect of anharmonicity on the formation of the heavy-electron state near the polaron–bipolaron transition and the crossover region is discussed in detail.
書誌情報 Journal of the Physical Society of Japan
en : Journal of the Physical Society of Japan

巻 81, 号 4, p. 044701-1-044701-11, 発行日 2012-03
出版者
出版者 日本物理学会
ISSN
収録物識別子タイプ ISSN
収録物識別子 00319015
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00704814
DOI
関連識別子
識別子タイプ DOI
関連識別子 info:doi/10.1143/JPSJ.81.044701
権利
権利情報 Copyright (C) 2012 The Physical Society of Japan
著者版フラグ
値 author
異版である
関連タイプ isVersionOf
関連識別子
識別子タイプ URI
関連識別子 http://journals.jps.jp/doi/abs/10.1143/JPSJ.81.044701
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