{"created":"2023-06-26T11:01:38.813766+00:00","id":2395,"links":{},"metadata":{"_buckets":{"deposit":"edf6e0b8-4bd3-4061-b34c-3fa27bb812f2"},"_deposit":{"created_by":30,"id":"2395","owners":[30],"pid":{"revision_id":0,"type":"depid","value":"2395"},"status":"published"},"_oai":{"id":"oai:oist.repo.nii.ac.jp:00002395","sets":["6:71"]},"author_link":["15892","15893","15890","15886","15889","15887","15891","15895","15888","15894"],"item_10001_biblio_info_7":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-11-19","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"20","bibliographicPageStart":"L201111 ","bibliographicVolumeNumber":"104","bibliographic_titles":[{},{"bibliographic_title":"Physical Review B","bibliographic_titleLang":"en"}]}]},"item_10001_creator_3":{"attribute_name":"Author","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Li, Xiang"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Cooper, S. E."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Krishnadas, A."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"de la Torre, A."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Perry, R. S."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Baumberger, F."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Silevitch, D. M."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hsieh, D."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Rosenbaum, T. F."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Feng, Yejun"}],"nameIdentifiers":[{}]}]},"item_10001_description_5":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"Protected by the interplay of on-site Coulomb interactions and spin-orbit coupling, Sr₂IrO₄ at high pressure is a rare example of a Mott insulator with a paramagnetic ground state. Here, using optical Raman scattering, we measure both the phonon and magnon evolution in Sr2IrO4 under pressure and identify three different magnetically-ordered phases, culminating in a spin-disordered state beyond 18 GPa. A strong first-order structural phase transition drives the magnetic evolution at ∼10 GPa with reduced structural anisotropy in the IrO₆ cages, leading to increasingly isotropic exchange interactions between the Heisenberg spins and a spin-flip transition to c-axis-aligned antiferromagnetic order. In the disordered phase of Heisenberg Jeff = 1/2 pseudospins, the spin excitations are quasielastic and continuous to 10 meV, potentially hosting a gapless quantum spin liquid in Sr₂IrO₄.","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1103/PhysRevB.104.L201111","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_17":{"attribute_name":"Related site","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://journals.aps.org/prb/abstract/10.1103/PhysRevB.104.L201111","subitem_relation_type_select":"URI"}}]},"item_10001_rights_15":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"© 2021 American Physical Society."}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2469-9950","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"2469-9969","subitem_source_identifier_type":"ISSN"}]},"item_10001_version_type_20":{"attribute_name":"Author's flag","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-11-29"}],"displaytype":"detail","filename":"Li-2021-Magnetic order, disorder, and excitati.pdf","filesize":[{"value":"791.8 kB"}],"format":"application/pdf","license_note":"Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Li-2021-Magnetic order, disorder, and excitati","url":"https://oist.repo.nii.ac.jp/record/2395/files/Li-2021-Magnetic order, disorder, and excitati.pdf"},"version_id":"48ae064c-2c96-476b-bb1b-1791fcbecf37"}]},"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":"Magnetic order, disorder, and excitations under pressure in the Mott insulator Sr2IrO4","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Magnetic order, disorder, and excitations under pressure in the Mott insulator Sr2IrO4","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"30","path":["71"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-11-29"},"publish_date":"2021-11-29","publish_status":"0","recid":"2395","relation_version_is_last":true,"title":["Magnetic order, disorder, and excitations under pressure in the Mott insulator Sr2IrO4"],"weko_creator_id":"30","weko_shared_id":30},"updated":"2023-06-26T11:31:32.729481+00:00"}