{"created":"2021-03-01T06:30:50.286489+00:00","id":23020,"links":{},"metadata":{"_buckets":{"deposit":"d0b2c237-d0a6-467f-86be-1cf0d8be2700"},"_deposit":{"id":"23020","owners":[],"pid":{"revision_id":0,"type":"depid","value":"23020"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00023020","sets":["336:695:696"]},"author_link":["68040","68041","68042","68043"],"item_10_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-09-26","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"115155","bibliographicPageStart":"115155","bibliographicVolumeNumber":"94","bibliographic_titles":[{"bibliographic_title":"Physical Review B","bibliographic_titleLang":"en"}]}]},"item_10_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In various multiorbital systems, the emergence of the orbital fluctuations and their role on the pairing mechanism attract increasing attention. To achieve deep understanding on these issues, we perform a functional renormalization group (fRG) study for the two-orbital Hubbard model. The vertex corrections for the electron-boson coupling (U-VC), which are dropped in the Migdal-Eliashberg gap equation, are obtained by solving the RG equation. We reveal that the dressed electron-boson coupling for the charge channel Uˆceff becomes much larger than the bare Coulomb interaction Uˆ0 due to the U-VC in the presence of moderate spin fluctuations. For this reason, the attractive pairing interaction due to the charge or orbital fluctuations is enlarged by the factor (Uˆceff/Uˆ0)2>>1. In contrast, the spin fluctuation pairing interaction is suppressed by the spin-channel U-VC, because of the relation Uˆseff<<Uˆ0. The present study demonstrates that the orbital or charge fluctuation pairing mechanism can be realized in various multiorbital systems thanks to the U-VC, such as in Fe-based superconductors.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10_identifier_60":{"attribute_name":"URI","attribute_value_mlt":[{"subitem_identifier_type":"DOI","subitem_identifier_uri":"http://doi.org/10.1103/PhysRevB.94.115155"},{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/2237/25206"}]},"item_10_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Physical Society","subitem_publisher_language":"en"}]},"item_10_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1103/PhysRevB.94.115155","subitem_relation_type_select":"DOI"}}]},"item_10_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2016 American Physical Society","subitem_rights_language":"en"}]},"item_10_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_10_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2469-9950","subitem_source_identifier_type":"PISSN"}]},"item_1615787544753":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tazai, Rina","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"68040","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamakawa, Youichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"68041","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsuchiizu, Masahisa","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"68042","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kontani, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"68043","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-02-22"}],"displaytype":"detail","filename":"PhysRevB_94_115155.pdf","filesize":[{"value":"915.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"PhysRevB_94_115155.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/23020/files/PhysRevB_94_115155.pdf"},"version_id":"a0bfee17-40d2-44ca-bbcf-62b31561c957"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Functional renormalization group study of orbital fluctuation mediated superconductivity: Impact of the electron-boson coupling vertex corrections","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Functional renormalization group study of orbital fluctuation mediated superconductivity: Impact of the electron-boson coupling vertex corrections","subitem_title_language":"en"}]},"item_type_id":"10","owner":"1","path":["696"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2016-12-15"},"publish_date":"2016-12-15","publish_status":"0","recid":"23020","relation_version_is_last":true,"title":["Functional renormalization group study of orbital fluctuation mediated superconductivity: Impact of the electron-boson coupling vertex corrections"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T04:12:36.559261+00:00"}