{"updated":"2025-01-22T17:19:23.220454+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00029888","sets":["1164:2240:2319:2321"]},"path":["2321"],"owner":"1","recid":"29888","title":["スーパーコンピュータによる磁化挙動シミュレーション"],"pubdate":{"attribute_name":"公開日","attribute_value":"1994-10-27"},"_buckets":{"deposit":"789b7ddc-16ab-42fa-8671-355097416297"},"_deposit":{"id":"29888","pid":{"type":"depid","value":"29888","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"スーパーコンピュータによる磁化挙動シミュレーション","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スーパーコンピュータによる磁化挙動シミュレーション"},{"subitem_title":"Numerical simulation of magnetization reversal using super - computer","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"1994-10-27","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"日立中研"},{"subitem_text_value":"日立中研"},{"subitem_text_value":"日立システム研"},{"subitem_text_value":"電通大情報工学科"},{"subitem_text_value":"電通大情報工学科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Central Research Lab. Hitachi Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Central Research Lab. Hitachi Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Systems Development Lab. Hitachi Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Univ. of Electro - communications","subitem_text_language":"en"},{"subitem_text_value":"Univ. of Electro - communications","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/29888/files/IPSJ-HPC94053002.pdf"},"date":[{"dateType":"Available","dateValue":"1996-10-27"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC94053002.pdf","filesize":[{"value":"970.5 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"14"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"8c6cd243-68b5-47b7-8c38-4527fe7d53b7","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 1994 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"上坂保太郎"},{"creatorName":"藤本, 和久"},{"creatorName":"吉原, 郁夫"},{"creatorName":"仲谷, 栄伸"},{"creatorName":"林, 信夫"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yasutaro, Uesaka","creatorNameLang":"en"},{"creatorName":"Kazuhisa, Fujimoto","creatorNameLang":"en"},{"creatorName":"Ikuo, Yoshihara","creatorNameLang":"en"},{"creatorName":"Yoshinobu, Nakatani","creatorNameLang":"en"},{"creatorName":"Nobuo, Hayashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10463942","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"磁気記録高密度化のキーテクノロジーとして注目を集めている磁気抵抗効果型ヘッドの開発には，サブミクロン以下の微細な磁化挙動を知る必要があるが実験的には困難であり，数値シミュレーションへの期待が大きい．我々は磁化をLandau?Lifshitz?Gilbert方程式に基づくモデルで表わし、差分法で離散化し、時間発展的に解くシミュレータを開発した。その中では、計算の主要部となる反磁界を求める部分にスペクトル法を用い、さらに，スペクトル法の中で用いる二次元高速フーリエ変換プログラムに特別の工夫を施した。この結果，直接的な行列計算を行った場合に比べ，約20倍の高速化を達成した。これを用いて、SAL　(ft　Adjacent　Lay)の磁化反転にともなう出力の変化が存在することを明らかにした。","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Magnetic structure and magnetization reversal mechanism of magneto-resistive head were analysed by using super-computer. Magnetic films were divided into rectangular cells and each magnetic moment was assumed to precess according to the Landau-Lifshitz-Gilbert equation. For the demagnetizing field calculation, which is the most time cosuming process, Fast Fourier Transform was used. Then, the computation time became less than 1/20 than the time for the direct calculation method. The effect of uniform applied field on output was calculated and small peaks due to magnetization reversals of SAL (Soft A djacent Layer) were observed.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"16","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告ハイパフォーマンスコンピューティング（HPC）"}],"bibliographicPageStart":"9","bibliographicIssueDates":{"bibliographicIssueDate":"1994-10-27","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"92(1994-HPC-053)","bibliographicVolumeNumber":"1994"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"created":"2025-01-18T22:59:37.269292+00:00","id":29888,"links":{}}