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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

Hole-s_± State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in Iron Pnictides

http://hdl.handle.net/10191/49479
http://hdl.handle.net/10191/49479
2b693969-ba45-4a65-b8eb-a889cdecfc95
名前 / ファイル ライセンス アクション
85_114709.pdf 85_114709.pdf (503.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2018-01-26
タイトル
タイトル Hole-s_± State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in Iron Pnictides
タイトル
言語 en
タイトル Hole-s_± State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in Iron Pnictides
言語
言語 eng
キーワード
主題Scheme Other
主題 dynamical mean-field theory
キーワード
主題Scheme Other
主題 iron-based superconductor
キーワード
主題Scheme Other
主題 magnetic fluctuation
キーワード
主題Scheme Other
主題 orbital fluctuation
キーワード
主題Scheme Other
主題 5-orbital Hubbard model
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Ishizuka, Jun

× Ishizuka, Jun

WEKO 7089

Ishizuka, Jun

Search repository
Yamada, Takemi

× Yamada, Takemi

WEKO 7090

Yamada, Takemi

Search repository
Yanagi, Yuki

× Yanagi, Yuki

WEKO 7091

Yanagi, Yuki

Search repository
Ono, Yoshiaki

× Ono, Yoshiaki

WEKO 62

Ono, Yoshiaki

Search repository
抄録
内容記述タイプ Abstract
内容記述 The five-orbital Hubbard model for iron-based superconductors is investigated by using the dynamical mean-field theory combined with the Eliashberg equation to clarify the local correlation effects on the electronic states and the superconductivity. In the specific case where the antiferromagnetic (AMF) and the antiferro-orbital (AFO) fluctuations are comparably enhanced, the orbital dependence of the vertex function becomes significantly large while that of the self-energy is small, in contrast to the AFM fluctuation-dominated case where the vertex function (the self-energy) shows small (large) orbital dependence. The orbital-dependent vertex function together with the nesting between the inner and outer hole Fermi surfaces results in the enhancement of the inter-orbital ferromagnetic (FM) fluctuation in addition to the AFM and AFO fluctuations. In this case, the hole-s_±-wave pairing with the sign change of the two hole Fermi surfaces is mediated by the coexisting three fluctuations as expected to be observed in a specific compound LiFeAs.
書誌情報 Journal of the Physical Society of Japan
en : Journal of the Physical Society of Japan

巻 85, 号 11, p. 114709-1-114709-8, 発行日 2016-10
出版者
出版者 The Physical Society of Japan
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
識別子タイプ DOI
関連識別子 info:doi/10.7566/JPSJ.85.114709
権利
権利情報 Copyright (C) 2016 The Physical Society of Japan
著者版フラグ
値 author
異版である
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://journals.jps.jp/doi/abs/10.7566/JPSJ.85.114709
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