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Two types of s-wave pairing due to magnetic and orbital fluctuations in the two-dimensional 16-band d-p model for iron-based superconductors
http://hdl.handle.net/10191/26868
http://hdl.handle.net/10191/268685802d0f5-676d-4482-bb94-369a7cee1b91
名前 / ファイル | ライセンス | アクション |
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81(5)_054518.pdf (719.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-04-16 | |||||
タイトル | ||||||
タイトル | Two types of s-wave pairing due to magnetic and orbital fluctuations in the two-dimensional 16-band d-p model for iron-based superconductors | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Two types of s-wave pairing due to magnetic and orbital fluctuations in the two-dimensional 16-band d-p model for iron-based superconductors | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Yanagi, Yuki
× Yanagi, Yuki× Yamakawa, Youichi× Ono, Yoshiaki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We study superconductivity in the two-dimensional 16-band d-p model extracted from a tight-binding fit to the band structure of LaFeAsO, using the random phase approximation. When the intraorbital repulsion U is larger than the interorbital one U' , an extended s-wave (s±wave) pairing with sign reversal of order parameter is mediated by antiferromagnetic spin fluctuations, while when U<U' another kind of s-wave (s++-wave) pairing without sign reversal is mediated by ferro-orbital fluctuations. The s++-wave pairing is enhanced due to the electron-phonon coupling and then can be expanded over the realistic parameter region with U>U'. | |||||
書誌情報 |
Physical review. Third series. B, Condensed matter and materials physics en : Physical review. Third series. B, Condensed matter and materials physics 巻 81, 号 5, p. 054518-1-054518-10, 発行日 2010-02 |
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出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10980121 | |||||
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収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11187113 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevB.81.054518 | |||||
権利 | ||||||
権利情報 | Copyright (C) 2010 The American Physical Society | |||||
著者版フラグ | ||||||
値 | publisher | |||||
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.aps.org/prb/pdf/10.1103/PhysRevB.81.054518 |