{"_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"}, "item_10_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2016-09-26", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "115155", "bibliographicPageStart": "115155", "bibliographicVolumeNumber": "94", "bibliographic_titles": [{"bibliographic_title": "Physical Review B"}]}]}, "item_10_description_4": {"attribute_name": "\u6284\u9332", "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 U\u02c6ceff becomes much larger than the bare Coulomb interaction U\u02c60 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 (U\u02c6ceff/U\u02c60)2\u003e\u003e1. In contrast, the spin fluctuation pairing interaction is suppressed by the spin-channel U-VC, because of the relation U\u02c6seff\u003c\u003cU\u02c60. 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_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": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "American Physical Society"}]}, "item_10_rights_12": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u00a9 2016 American Physical Society"}]}, "item_10_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "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": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Tazai, Rina"}], "nameIdentifiers": [{"nameIdentifier": "68040", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Yamakawa, Youichi"}], "nameIdentifiers": [{"nameIdentifier": "68041", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tsuchiizu, Masahisa"}], "nameIdentifiers": [{"nameIdentifier": "68042", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kontani, Hiroshi"}], "nameIdentifiers": [{"nameIdentifier": "68043", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-02-22"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "PhysRevB_94_115155.pdf", "filesize": [{"value": "915.8 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 915800.0, "url": {"label": "PhysRevB_94_115155.pdf", "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": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "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": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Functional renormalization group study of orbital fluctuation mediated superconductivity: Impact of the electron-boson coupling vertex corrections"}]}, "item_type_id": "10", "owner": "1", "path": ["336/695/696"], "permalink_uri": "http://hdl.handle.net/2237/25206", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_name_i18n": "\u516c\u958b\u65e5", "attribute_value": "2016-12-15"}, "publish_date": "2016-12-15", "publish_status": "0", "recid": "23020", "relation": {}, "relation_version_is_last": true, "title": ["Functional renormalization group study of orbital fluctuation mediated superconductivity: Impact of the electron-boson coupling vertex corrections"], "weko_shared_id": null}