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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Peierls ground state and excitations in the electron-lattice correlated system (EDO-TTF)_2X

http://hdl.handle.net/2237/11415
http://hdl.handle.net/2237/11415
b3660103-cd9d-43e9-94c0-201eb8471e4c
名前 / ファイル ライセンス アクション
PhysRevB_77_195128.pdf PhysRevB_77_195128.pdf (360.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-04-13
タイトル
タイトル Peierls ground state and excitations in the electron-lattice correlated system (EDO-TTF)_2X
言語 en
著者 Tsuchiizu, M.

× Tsuchiizu, M.

WEKO 29214

en Tsuchiizu, M.

Search repository
Suzumura, Y.

× Suzumura, Y.

WEKO 29215

en Suzumura, Y.

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 American Physical Society, All rights reserved.
抄録
内容記述 We investigate the exotic Peierls state in the one-dimensional organic compound (EDO-TTF)_2X, wherein the Peierls transition is accompanied by the bending of molecules and also by a fourfold periodic array of charge disproportionation along the one-dimensional chain. Such a Peierls state, wherein the interplay between the electron correlation and the electron-phonon interaction takes an important role, is examined based on an extended Peierls–Holstein–Hubbard model that includes the alternation of the elastic energies for both the lattice distortion and the molecular deformation. The model reproduces the experimentally observed pattern of the charge disproportionation and there exists a metastable state wherein the energy takes a local minimum with respect to the lattice distortion and/or molecular deformation. Furthermore, we investigate the excited states for both the Peierls ground state and the metastable state by considering the soliton formation of electrons. It is shown that the soliton excitation from the metastable state costs energy that is much smaller than that of the Peierls state, where the former is followed only by the charge degree of freedom and the latter is followed by that of spin and charge. Based on these results, we discuss the exotic photoinduced phase found in (EDO-TTF)_2PF_6.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1103/PhysRevB.77.195128
ISSN
収録物識別子タイプ PISSN
収録物識別子 1098-0121
書誌情報 en : PHYSICAL REVIEW B

巻 77, 号 19, p. 195128-195128, 発行日 2008-05
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/11415
識別子タイプ HDL
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