{"created":"2023-05-15T15:25:39.590920+00:00","id":13384,"links":{},"metadata":{"_buckets":{"deposit":"25623790-f01e-43af-8489-b267c4ae8f22"},"_deposit":{"created_by":3,"id":"13384","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"13384"},"status":"published"},"_oai":{"id":"oai:sucra.repo.nii.ac.jp:00013384","sets":["94:426"]},"author_link":["28597","21738","21739","21740","28598","16489","28596"],"item_119_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"024403-12","bibliographicPageStart":"024403-1","bibliographicVolumeNumber":"79","bibliographic_titles":[{"bibliographic_title":"PHYSICAL REVIEW B"}]}]},"item_119_date_31":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2009-02-26","subitem_date_issued_type":"Created"}]},"item_119_description_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_description":"http://link.aps.org/doi/10.1103/PhysRevB.79.024403 | http://link.aps.org/doi/10.1103/PhysRevB.79.024403","subitem_description_type":"Other"}]},"item_119_description_19":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In order to understand physical properties of the field-induced phase of a spin-gap system, we performed high-field and multifrequency electron-spin-resonance (ESR) measurements on single crystals of the S=1 quasi-one-dimensional Heisenberg antiferromagnet, namely, the Haldane magnet, Ni(C5H14N2)(2)N-3(PF6), abbreviated as NDMAP. This compound has an energy gap (Haldane gap) at zero field and one of the excited triplet branches goes down on applying magnetic fields, resulting in the gap closing at a critical field H-c around 5 T that is slightly different depending on the field direction. First, we studied the angular dependence of spin excitations below 14 T. Two sets of resonance modes caused by two types of Ni2+ chains in NDMAP are observed. These data are analyzed by comparing with a phenomenological field theory (PFT). The experimental results between H-c and about 12 T are well fitted with the calculated ones by the PFT, but the fitting above 12 T is not satisfactory. Therefore, we studied spin excitations at much higher magnetic fields up to about 55 T. Several ESR signals are observed above H-c for each crystallographic axis, and one or two of them survive in the high-field region above about 15 T. One mode approaches a paramagnetic resonance line at high fields and the other mode broadly changes with magnetic fields. These modes fit well with the conventional antiferromagnetic resonance modes with biaxial anisotropy. This result suggests that the quantum fluctuations are suppressed by strong magnetic field and the spin excitations change from a quantum nature to a classical one in high magnetic fields.","subitem_description_type":"Abstract"}]},"item_119_description_29":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"text","subitem_description_type":"Other"}]},"item_119_description_30":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_119_publisher_11":{"attribute_name":"出版者名","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_119_relation_16":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1103/PhysRevB.79.024403","subitem_relation_type_select":"DOI"}}]},"item_119_source_id_14":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"10980121","subitem_source_identifier_type":"ISSN"}]},"item_119_text_27":{"attribute_name":"版","attribute_value_mlt":[{"subitem_text_value":"[出版社版]"}]},"item_119_text_3":{"attribute_name":"著者 ローマ字","attribute_value_mlt":[{"subitem_text_value":"Kashiwagi, T."},{"subitem_text_value":"Hagiwara, M."},{"subitem_text_value":"Kimura, S."},{"subitem_text_value":"Honda, Z."},{"subitem_text_value":"Miyazaki, H."},{"subitem_text_value":"Harada, I."},{"subitem_text_value":"Kindo, K."}]},"item_119_text_32":{"attribute_name":"アイテムID","attribute_value_mlt":[{"subitem_text_value":"A1002829"}]},"item_119_text_4":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"埼玉大学大学院理工学研究科物質科学部門"}]},"item_119_text_5":{"attribute_name":"著者 所属(別言語)","attribute_value_mlt":[{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"&EMPTY&"},{"subitem_text_value":"Graduate School of Science and Engineering, Saitama University"}]},"item_119_text_9":{"attribute_name":"年月次","attribute_value_mlt":[{"subitem_text_value":"2009-1"}]},"item_119_version_type_28":{"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":"Kashiwagi, T."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hagiwara, M."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kimura, S."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"本多, 善太郎"},{"creatorName":"ホンダ, ゼンタロウ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Miyazaki, H."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Harada, I."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kindo, K."}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-01-24"}],"displaytype":"detail","filename":"A1002829.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"A1002829.pdf","url":"https://sucra.repo.nii.ac.jp/record/13384/files/A1002829.pdf"},"version_id":"429456b3-2a97-4bcc-b315-0712a3f4ee16"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"antiferromagnetic materials","subitem_subject_scheme":"Other"},{"subitem_subject":"antiferromagnetic resonance","subitem_subject_scheme":"Other"},{"subitem_subject":"energy gap","subitem_subject_scheme":"Other"},{"subitem_subject":"Heisenberg model","subitem_subject_scheme":"Other"},{"subitem_subject":"magnetic anisotropy","subitem_subject_scheme":"Other"},{"subitem_subject":"organic compounds","subitem_subject_scheme":"Other"},{"subitem_subject":"paramagnetic resonance","subitem_subject_scheme":"Other"},{"subitem_subject":"spin fluctuations","subitem_subject_scheme":"Other"},{"subitem_subject":"triplet state","subitem_subject_scheme":"Other"}]},"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":"High-field multifrequency electron-spin-resonance study of the Haldane magnet Ni(C5H14N2)(2)N-3(PF6)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"High-field multifrequency electron-spin-resonance study of the Haldane magnet Ni(C5H14N2)(2)N-3(PF6)"}]},"item_type_id":"119","owner":"3","path":["426"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-02-26"},"publish_date":"2009-02-26","publish_status":"0","recid":"13384","relation_version_is_last":true,"title":["High-field multifrequency electron-spin-resonance study of the Haldane magnet Ni(C5H14N2)(2)N-3(PF6)"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-16T09:24:59.938198+00:00"}