{"created":"2023-05-15T14:55:02.462921+00:00","id":74807,"links":{},"metadata":{"_buckets":{"deposit":"dd93f54a-8afe-4b9b-9cce-f10b98feef7d"},"_deposit":{"created_by":1,"id":"74807","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"74807"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00074807","sets":["1"]},"author_link":["734185","734183","734190","734192","734186","734189","734193","734182","734188","734187","734191","734184"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicPageEnd":"125127-7","bibliographicPageStart":"125127-1","bibliographicVolumeNumber":"99","bibliographic_titles":[{"bibliographic_title":"Physical Review B"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Hyperhoneycomb iridate β-Li2IrO3 is a three-dimensional analog of two-dimensional honeycomb iridates, such as α-Li2IrO3, which recently appeared as another playground for the physics of Kitaev-type spin liquid. β-Li2IrO3 shows a noncollinear spiral ordering of spin-orbital-entangled Jeff = 1/2 moments at low temperatures below 38 K, which is known to be suppressed under a pressure of ∼2 GPa. In addition, a structural transition is observed at PS ∼ 4 GPa at room temperature. Using the neutron powder diffraction technique, the crystal structure in the high-pressure phase of β-Li2IrO3 above PS was refined, which indicates the formation of Ir2 dimers on the zigzag chains, with an Ir-Ir distance of ∼2.66 Å, even shorter than that of metallic Ir. We argue that the strong dimerization stabilizes the bonding molecular-orbital state comprising the two local dzx orbitals in the Ir-O2-Ir bond plane, which conflicts with the equal superposition of dxy, dyz, and dzx orbitals in the Jeff = 1/2 wave function produced by strong spin-orbit coupling. The results of resonant inelastic x-ray scattering measurements and the electronic structure calculations are fully consistent with the collapse of the Jeff = 1/2 state. The competition between the spin-orbital-entangled Jeff = 1/2 state and molecular-orbital formation is most likely universal in honeycomb-based Kitaev materials.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Americal Physical Society"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1103/PhysRevB.99.125127","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.125127","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2469-9950","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Takayama, T."}],"nameIdentifiers":[{"nameIdentifier":"734182","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Krajewska, A."}],"nameIdentifiers":[{"nameIdentifier":"734183","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"S. Gibbs, A."}],"nameIdentifiers":[{"nameIdentifier":"734184","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"N. Yaresko, A."}],"nameIdentifiers":[{"nameIdentifier":"734185","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishii, H."}],"nameIdentifiers":[{"nameIdentifier":"734186","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaoka, H."}],"nameIdentifiers":[{"nameIdentifier":"734187","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishii, K."}],"nameIdentifiers":[{"nameIdentifier":"734188","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hiraoka, N."}],"nameIdentifiers":[{"nameIdentifier":"734189","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"P. Funnell, N."}],"nameIdentifiers":[{"nameIdentifier":"734190","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"L. Bull, C."}],"nameIdentifiers":[{"nameIdentifier":"734191","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takagi, H."}],"nameIdentifiers":[{"nameIdentifier":"734192","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishii, Kenji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"734193","nameIdentifierScheme":"WEKO"}]}]},"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":"Pressure-induced collapse of the spin-orbital Mott state in the hyperhoneycomb iridate β-Li2IrO3","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Pressure-induced collapse of the spin-orbital Mott state in the hyperhoneycomb iridate β-Li2IrO3"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-08-16"},"publish_date":"2018-08-16","publish_status":"0","recid":"74807","relation_version_is_last":true,"title":["Pressure-induced collapse of the spin-orbital Mott state in the hyperhoneycomb iridate β-Li2IrO3"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-16T07:56:11.648041+00:00"}