{"created":"2021-03-01T06:11:56.551986+00:00","id":5383,"links":{},"metadata":{"_buckets":{"deposit":"0d105529-d808-4ba3-b97c-cd42f5f302ad"},"_deposit":{"id":"5383","owners":[],"pid":{"revision_id":0,"type":"depid","value":"5383"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00005383","sets":["320:321:322"]},"author_link":["13730","13731","13732"],"item_10_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-06-17","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"25","bibliographicPageEnd":"3640","bibliographicPageStart":"3638","bibliographicVolumeNumber":"68","bibliographic_titles":[{"bibliographic_title":"Applied Physics Letters","bibliographic_titleLang":"en"}]}]},"item_10_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Bulk samples of La_{2-2x}Ca_{1+2x}Mn_2O_7 with the layered Sr_3Ti_2O_7-type perovskite structure have been successfully synthesized and investigated with respect to their magnetic and electrical properties. It is found that La_{2-2x}Ca_{1+2x}Mn_2O_7 (x=0.25) is a metallic ferromagnet with a magnetic transition temperature T_c of 215 K. The large magnetoresistance (MR) effect with Δρ/ρ_0 of ～ 60% at 1.8 T was observed in a wide temperature range below a cusp temperature in resistivity of 96 K, which is well below the magnetic T_c . This behavior is quite different from that of the well-known double-exchange ferromagnets such as La_{1-x}Ca_xMnO_3, where large MR effects are restricted to a narrow temperature range around the ferromagnetic transition. The present result could be interpreted by using the double-exchange theory incorporating the anisotropy resulting from the two-dimensional Mn-O-Mn networks in La_{2-2x}Ca_{1+2x}Mn_2O_7.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10_identifier_60":{"attribute_name":"URI","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/2237/6988"}]},"item_10_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Institute of Physics","subitem_publisher_language":"en"}]},"item_10_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1063/1.115755","subitem_relation_type_select":"DOI"}}]},"item_10_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (1996) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.","subitem_rights_language":"en"}]},"item_10_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_10_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0003-6951","subitem_source_identifier_type":"PISSN"}]},"item_10_text_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_text_value":"application/pdf"}]},"item_1615787544753":{"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_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":"Asano, H.","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13730","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hayakawa, J.","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13731","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsui, M.","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13732","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":"2018-02-19"}],"displaytype":"detail","filename":"ApplPhysLett_68_3638.pdf","filesize":[{"value":"78.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ApplPhysLett_68_3638.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/5383/files/ApplPhysLett_68_3638.pdf"},"version_id":"1e85fd10-1709-49ad-8f11-c6fa9f0c459d"}]},"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":"Giant magnetoresistance of a two-dimensional ferromagnet La_{2-2x}Ca_{1+2x}Mn_2O_7","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Giant magnetoresistance of a two-dimensional ferromagnet La_{2-2x}Ca_{1+2x}Mn_2O_7","subitem_title_language":"en"}]},"item_type_id":"10","owner":"1","path":["322"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2006-10-20"},"publish_date":"2006-10-20","publish_status":"0","recid":"5383","relation_version_is_last":true,"title":["Giant magnetoresistance of a two-dimensional ferromagnet La_{2-2x}Ca_{1+2x}Mn_2O_7"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T03:50:03.915804+00:00"}