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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

Topological Domain Wall and Valley Hall Effect in Charge Ordered Phase of Molecular Dirac Fermion System α-(BEDT-TTF)2I3

http://hdl.handle.net/2237/25287
28c333c1-bebb-47e5-8650-4b3642a59b7e
名前 / ファイル ライセンス アクション
67542.pdf 67542.pdf ファイル公開:2017/09/15 (1.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-12-22
タイトル
タイトル Topological Domain Wall and Valley Hall Effect in Charge Ordered Phase of Molecular Dirac Fermion System α-(BEDT-TTF)2I3
著者 Matsuno, Genki

× Matsuno, Genki

WEKO 68474

Matsuno, Genki

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Omori, Yukiko

× Omori, Yukiko

WEKO 68475

Omori, Yukiko

Search repository
Eguchi, Takaaki

× Eguchi, Takaaki

WEKO 68476

Eguchi, Takaaki

Search repository
Kobayashi, Akito

× Kobayashi, Akito

WEKO 68477

Kobayashi, Akito

Search repository
権利
権利情報 Copyright ©2016 The Physical Society of Japan 日本物理学会
抄録
内容記述 The topological domain wall and valley Hall effect are theoretically investigated in the molecular conductor α-(BEDT-TTF)2I3. By using the mean-field theory in an extended Hubbard model, it is demonstrated under a cylinder boundary condition that a domain wall emerges in the charge ordered phase, and exhibits a topological nature near the phase transition to the massless Dirac Fermion phase. The topological nature is well characterized by the Berry curvature, which has opposite signs in two charge ordered phases divided by the domain wall, and gives rise to the valley Hall conductivity with opposite signs, enabling these phases to be distinguished. It is also found that the valley Hall conductivity in the tilted Dirac cones exhibits a characteristic double-peak structure as a function of chemical potential using the semi classical formalism.
内容記述タイプ Abstract
出版者
出版者 日本物理学会
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
ISSN
収録物識別子タイプ ISSN
収録物識別子 0031-9015
書誌情報 Journal of the Physical Society of Japan

巻 85, p. 094710-094710, 発行日 2016-09-15
著者版フラグ
値 author
URI
識別子 http://doi.org/10.7566/JPSJ.85.094710
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/25287
識別子タイプ HDL
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