{"created":"2023-05-15T15:25:17.361340+00:00","id":12860,"links":{},"metadata":{"_buckets":{"deposit":"6c0e54c6-81a6-4783-ab4a-4b06b9108007"},"_deposit":{"created_by":3,"id":"12860","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"12860"},"status":"published"},"_oai":{"id":"oai:sucra.repo.nii.ac.jp:00012860","sets":["94:426"]},"author_link":["20271"],"item_119_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicPageEnd":"1274","bibliographicPageStart":"1269","bibliographicVolumeNumber":"E80-C","bibliographic_titles":[{"bibliographic_title":"IEICE transactions on electronics"}]}]},"item_119_date_31":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2007-10-04","subitem_date_issued_type":"Created"}]},"item_119_description_19":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"It is shown that a three-fluid model, which was successfully introduced to explain microwave characteristics of high-T_c superconductors phenomenologically, is suit also to explain those of low-T_c superconductors. In this model, the two contributions of a residual normal electron, in addition to a super and a normal electron in the two-fluid model, and of the temperature (T) dependence of momentum relaxation time τ for the two normal electrons are taken into account. Measured results of the T dependence of surface resistance R_s for a Nb film with critical temperature T_c=9.2 K agree very well with an R_s curve calculated using the present model, where a residual surface resistance at T=0K, R_<so>, and the T dependence of τ were determined using the surface reactance at 0 K X_<so>=37.6 mΩ calculated using the BCS theory to fit, a calculated R_s curve with the measured values as a function of T. Furthermore, microwave characteristics predicted from the BCS theory cannot be explained phenomenologically using the conventional two-fluid model. This difficulty can be solved by using an improved two-fluid model, called the two-fluid (τ) model, where the T dependence of τ is taken into account. Finally the frequency dependence of R_s calculated for the Nb film is f^<1.9> for the BCS theory and f^<2.0> for the three-fluid (τ) model on the assumption of the frequency independence of τ.","subitem_description_type":"Abstract"}]},"item_119_description_21":{"attribute_name":"注記","attribute_value_mlt":[{"subitem_description":"copyright(c)1997 IEICE\n許諾番号：07RB0174　\nhttp://www.ieice.org/jpn/trans_online/index.html","subitem_description_type":"Other"}]},"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":"社団法人電子情報通信学会"}]},"item_119_source_id_14":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"09168516","subitem_source_identifier_type":"ISSN"}]},"item_119_text_3":{"attribute_name":"著者 ローマ字","attribute_value_mlt":[{"subitem_text_value":"KOBAYASHI, Yoshio"},{"subitem_text_value":"YOSHIKAWA, Hiromichi"},{"subitem_text_value":"ONO, Seiichiro"}]},"item_119_text_32":{"attribute_name":"アイテムID","attribute_value_mlt":[{"subitem_text_value":"A1003038"}]},"item_119_text_4":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"埼玉大学"},{"subitem_text_value":"埼玉大学"},{"subitem_text_value":"埼玉大学"}]},"item_119_text_5":{"attribute_name":"著者 所属(別言語)","attribute_value_mlt":[{"subitem_text_value":"Saitama University"},{"subitem_text_value":"Saitama University"},{"subitem_text_value":"Saitama University"}]},"item_119_text_9":{"attribute_name":"年月次","attribute_value_mlt":[{"subitem_text_value":"1997-10"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小林, 禧夫"},{"creatorName":"コバヤシ, ヨシオ","creatorNameLang":"ja-Kana"}],"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":"A1003038.pdf","filesize":[{"value":"409.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"A1003038.pdf","url":"https://sucra.repo.nii.ac.jp/record/12860/files/A1003038.pdf"},"version_id":"14c63342-1c86-4845-93f3-98bf7a663ae6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"low-T_c superconductors","subitem_subject_scheme":"Other"},{"subitem_subject":"microwave","subitem_subject_scheme":"Other"},{"subitem_subject":"surface impedance","subitem_subject_scheme":"Other"},{"subitem_subject":"conductivity","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":"Phenomenological Description of Microwave Characteristics of Low-T_c Superconductor by Three-Fluid Model (Special Issue on Basic Properties and Applications of Superconductive Electron Devices)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Phenomenological Description of Microwave Characteristics of Low-T_c Superconductor by Three-Fluid Model (Special Issue on Basic Properties and Applications of Superconductive Electron Devices)"}]},"item_type_id":"119","owner":"3","path":["426"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-10-04"},"publish_date":"2007-10-04","publish_status":"0","recid":"12860","relation_version_is_last":true,"title":["Phenomenological Description of Microwave Characteristics of Low-T_c Superconductor by Three-Fluid Model (Special Issue on Basic Properties and Applications of Superconductive Electron Devices)"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-05-16T12:47:56.464654+00:00"}