{"created":"2021-10-15T01:46:50.430786+00:00","id":2001515,"links":{},"metadata":{"_buckets":{"deposit":"b97f5d51-1d96-40ec-a6ac-89a506a10ea4"},"_deposit":{"created_by":17,"id":"2001515","owner":"17","owners":[17],"owners_ext":{"displayname":"図書情報係","username":"repository"},"pid":{"revision_id":0,"type":"depid","value":"2001515"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:02001515","sets":["320:321:322"]},"author_link":[],"item_1615768549627":{"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_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-01-15","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"035135","bibliographicVolumeNumber":"103","bibliographic_titles":[{"bibliographic_title":"Physical Review B","bibliographic_titleLang":"en"}]}]},"item_9_description_4":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"We investigated the precise crystal structures and electronic states of a quasi-two-dimensional molecular conductor α−(BETS)2I3 at ambient pressure. The electronic resistivity of this molecular solid shows metal-to-insulator (MI) crossover behavior at TMI=50K. Our x-ray diffraction and 13C nuclear magnetic resonance experiments revealed that α−(BETS)2I3 maintains the inversion symmetry below TMI. First-principles calculations found a pair of anisotropic Dirac cones at a general k point, with the degenerate contact points at the Fermi level. The origin of the insulating state in this system is a small energy gap of ∼2meV opened by the spin-orbit interaction. The Z2 topological invariants indicate that this system is a weak topological insulator. Our results suggest that α−(BETS)2I3 is a promising material for studying the bulk Dirac electron system in two dimensions.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Physical Society","subitem_publisher_language":"en"}]},"item_9_relation_43":{"attribute_name":"関連情報","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1103/PhysRevB.103.035135","subitem_relation_type_select":"DOI"}}]},"item_9_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2021 American Physical Society","subitem_rights_language":"en"}]},"item_9_source_id_7":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"2469-9950","subitem_source_identifier_type":"PISSN"}]},"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":"Kitou, Shunsuke","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tsumuraya, Takao","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Sawahata, Hikaru","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ishii, Fumiyuki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hiraki, Ko-ichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nakamura, Toshikazu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Katayama, Naoyuki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Sawa, Hiroshi","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2021-10-15"}],"displaytype":"detail","filename":"PhysRevB_103_035135.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","url":{"objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/2001515/files/PhysRevB_103_035135.pdf"},"version_id":"0bceb5bc-52fe-4953-873b-48a664732d32"}]},"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":"Ambient-pressure Dirac electron system in the quasi-two-dimensional molecular conductor α−(BETS)2I3","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Ambient-pressure Dirac electron system in the quasi-two-dimensional molecular conductor α−(BETS)2I3","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"17","path":["322"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2021-10-15"},"publish_date":"2021-10-15","publish_status":"0","recid":"2001515","relation_version_is_last":true,"title":["Ambient-pressure Dirac electron system in the quasi-two-dimensional molecular conductor α−(BETS)2I3"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-01-16T05:15:58.186057+00:00"}