{"created":"2023-06-19T09:17:33.854113+00:00","id":30274,"links":{},"metadata":{"_buckets":{"deposit":"ec8bba85-e701-421f-8b7d-bca1bdbeaebb"},"_deposit":{"created_by":1,"id":"30274","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"30274"},"status":"published"},"_oai":{"id":"oai:kumadai.repo.nii.ac.jp:00030274","sets":["399:444"]},"author_link":["147885","147886"],"item_16_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-08-22","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"085430-23","bibliographicPageStart":"085430-1","bibliographicVolumeNumber":"96","bibliographic_titles":[{"bibliographic_title":"Physical Review B"}]}]},"item_16_creator_3":{"attribute_name":"別言語の著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岸木, 敬太"}],"nameIdentifiers":[{"nameIdentifier":"147885","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"長谷川, 泰正","creatorNameLang":"en"},{"creatorName":"ハセガワ, ヤスマサ","creatorNameLang":"ja-Kana"},{"creatorName":"Hasegawa, Yasumasa","creatorNameLang":"en"}],"familyNames":[{"familyName":"長谷川","familyNameLang":"en"},{"familyName":"ハセガワ","familyNameLang":"ja-Kana"},{"familyName":"Hasegawa","familyNameLang":"en"}],"givenNames":[{"givenName":"泰正","givenNameLang":"en"},{"givenName":"ヤスマサ","givenNameLang":"ja-Kana"},{"givenName":"Yasumasa","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"147886","nameIdentifierScheme":"WEKO"}]}]},"item_16_description_17":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_16_description_46":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"論文(Article)","subitem_description_type":"Other"}]},"item_16_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"The energies as a function of the magnetic field (H) and the pressure are studied theoretically in the tight-binding model for the two-dimensional organic conductor α-(BEDT-TTF)2I3, in which massless Dirac fermions are realized. The effects of the uniaxial pressure (P) are studied by using the pressure-dependent hopping parameters. The system is semimetallic with the same area of an electron pocket and a hole pocket atP <3.0 kbar, where the energies (ε0D) at the Dirac points locate below the Fermi energy (ε0F) when H = 0. We find that at P = 2.3 kbar the Dirac cones are critically tilted. In that case a type of band crossing occurs at “three-quarter” Dirac points; i.e., the dispersion is quadratic in one direction and linear in the other three directions. We obtain magnetic field dependencies of the Landau levels (εn): εn − ε0D ∝ (nH)4/5 at P = 2.3 kbar (three-quarter Dirac points) and εn − ε0F ∝ (nH)2 at P = 3.0 kbar (the critical pressure for the semimetallic state). We also study the magnetization as a function of the inverse magnetic field. We obtain two types of quantum oscillations. One is the usual de Haas–van Alphen (dHvA) oscillation, and the other is the unusual dHvA-like oscillation which is seen even in the system without the Fermi surface.","subitem_description_type":"Other"}]},"item_16_description_77":{"attribute_name":"URL","attribute_value_mlt":[{"subitem_description":"https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.085430","subitem_description_type":"Other"}]},"item_16_publisher_36":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_16_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1103/PhysRevB.96.085430","subitem_relation_type_select":"DOI"}}]},"item_16_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"©2017 American Physical Society"}]},"item_16_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"24699950","subitem_source_identifier_type":"ISSN"}]},"item_16_subject_20":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"428","subitem_subject_scheme":"NDC"}]},"item_16_text_18":{"attribute_name":"形態","attribute_value_mlt":[{"subitem_text_value":"10128238 bytes"}]},"item_16_text_47":{"attribute_name":"資源タイプ・ローカル","attribute_value_mlt":[{"subitem_text_value":"雑誌掲載論文"}]},"item_16_text_48":{"attribute_name":"資源タイプ・NII","attribute_value_mlt":[{"subitem_text_value":"Journal Article"}]},"item_16_text_49":{"attribute_name":"資源タイプ・DCMI","attribute_value_mlt":[{"subitem_text_value":"text"}]},"item_16_text_50":{"attribute_name":"資源タイプ・ローカル表示コード","attribute_value_mlt":[{"subitem_text_value":"01"}]},"item_16_version_type_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kishigi, Keita"}],"nameIdentifiers":[{"nameIdentifier":"147885","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"長谷川, 泰正","creatorNameLang":"en"},{"creatorName":"ハセガワ, ヤスマサ","creatorNameLang":"ja-Kana"},{"creatorName":"Hasegawa, Yasumasa","creatorNameLang":"en"}],"familyNames":[{"familyName":"長谷川","familyNameLang":"en"},{"familyName":"ハセガワ","familyNameLang":"ja-Kana"},{"familyName":"Hasegawa","familyNameLang":"en"}],"givenNames":[{"givenName":"泰正","givenNameLang":"en"},{"givenName":"ヤスマサ","givenNameLang":"ja-Kana"},{"givenName":"Yasumasa","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"147886","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":"2020-03-03"}],"displaytype":"detail","filename":"PhysRevB.96.085430.pdf","filesize":[{"value":"10.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"PhysRevB.96.085430.pdf","url":"https://kumadai.repo.nii.ac.jp/record/30274/files/PhysRevB.96.085430.pdf"},"version_id":"96893e27-da05-4036-8d6f-184018bd942a"}]},"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":"Three-quarter Dirac points, Landau levels, and magnetization in α-(BEDT-TTF)2I3","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Three-quarter Dirac points, Landau levels, and magnetization in α-(BEDT-TTF)2I3"}]},"item_type_id":"16","owner":"1","path":["444"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-11-07"},"publish_date":"2017-11-07","publish_status":"0","recid":"30274","relation_version_is_last":true,"title":["Three-quarter Dirac points, Landau levels, and magnetization in α-(BEDT-TTF)2I3"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-09-13T08:17:34.507890+00:00"}