{"created":"2023-07-27T04:45:57.842383+00:00","id":46264,"links":{},"metadata":{"_buckets":{"deposit":"7835842b-ba12-4dce-937d-f64f98c730a8"},"_deposit":{"created_by":3,"id":"46264","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"46264"},"status":"published"},"_oai":{"id":"oai:tohoku.repo.nii.ac.jp:00046264","sets":["76:267"]},"author_link":["108260","108262","108261"],"item_4_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1974","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"252","bibliographicPageStart":"252","bibliographicVolumeNumber":"25","bibliographic_titles":[{"bibliographic_title":"Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy"}]}]},"item_4_date_62":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2008-05-02","subitem_date_issued_type":"Created"}]},"item_4_date_63":{"attribute_name":"公開日（投稿完了日）","attribute_value_mlt":[{"subitem_date_issued_datetime":"2008-05-02","subitem_date_issued_type":"Created"}]},"item_4_date_65":{"attribute_name":"発行日","attribute_value_mlt":[{"subitem_date_issued_datetime":"1974","subitem_date_issued_type":"Created"}]},"item_4_date_80":{"attribute_name":"更新日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2010-01-27","subitem_date_issued_type":"Created"}]},"item_4_description_15":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Compounds with the composition of RCo_2B_2 (R=La, Nd, Sm, Gd, Tb, Dy, and Y) were prepared by arc-melting methods. Their crystal structure was investigated by means of X-ray diffraction. These ternary rare earth borides crystallize in the tetragonal lattice. The lattice parameters are a=3.616±0.003 A and c=10.215±0.005 A for LaCo_2B_2 and a=3.561±0.002 A and c=9.358±0.005 A for YCo_2B_2. The good agreement between the X-ray diffraction intensities observed and those calculated shows that the ternary borides, LaCo_2B_2 and YCo_2-B_2, crystallize in the ThCr_2Si_2-type structure. The crystallographic data obtained for LaCo_2B_2 and YCo_2B_2 are as follows : space group 14/mmm (D^<17>_<4h>); R in 2(a), 4Co in 4(d), and 4B in 4(e) with z～3/8. The boron atoms in this structure are situated at the center of a trigonal prism formed by four rare earth atoms and two cobalt atoms. We also found the RCo_2B_2 compounds to be isostructural with LaCo_2B_2 and YCo_2B_2, where R=Nd, Sm, Gd, Tb, and Dy. However, efforts to prepare CeCo_2B_2 and ErCo_2B_2 by arc-melting were unsuccessful.","subitem_description_type":"Abstract"}]},"item_4_description_41":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"紀要類(bulletin)","subitem_description_type":"Other"}]},"item_4_description_66":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"38780 bytes","subitem_description_type":"Other"}]},"item_4_publisher_34":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Tohoku University"}]},"item_4_radio_69":{"attribute_name":"公開範囲","attribute_value_mlt":[{"subitem_radio_item":"学外"}]},"item_4_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408808","subitem_source_identifier_type":"ISSN"}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00836167","subitem_source_identifier_type":"NCID"}]},"item_4_version_type_16":{"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":"NIIHARA, Koichi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SHISHIDO, Toetu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YAJIMA, Seishi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-02-16"}],"displaytype":"detail","filename":"KJ00004197962.pdf","filesize":[{"value":"38.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00004197962.pdf","url":"https://tohoku.repo.nii.ac.jp/record/46264/files/KJ00004197962.pdf"},"version_id":"97bc7ed0-26e8-4615-95c5-70f3058bbf5e"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"The Crystal Data of Ternary Rare Earth Borides, RCo_2B_2","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The Crystal Data of Ternary Rare Earth Borides, RCo_2B_2"}]},"item_type_id":"4","owner":"3","path":["267"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-05-02"},"publish_date":"2008-05-02","publish_status":"0","recid":"46264","relation_version_is_last":true,"title":["The Crystal Data of Ternary Rare Earth Borides, RCo_2B_2"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-27T18:14:49.300069+00:00"}