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大規模非線形格子の実験的研究
https://doi.org/10.24517/00052887
https://doi.org/10.24517/00052887a25418e3-6964-462b-bae5-b180b1507e5a
名前 / ファイル | ライセンス | アクション |
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SC-PR-SATO-M-kaken 2016-6p.pdf (265.0 kB)
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Item type | 報告書 / Research Paper(1) | |||||
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公開日 | 2018-12-10 | |||||
タイトル | ||||||
タイトル | 大規模非線形格子の実験的研究 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Experimental Study of Intrinsic Localized modes in Large Scale Nonlinear Lattices | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
ID登録 | ||||||
ID登録 | 10.24517/00052887 | |||||
ID登録タイプ | JaLC | |||||
著者別表示 |
Sato, Masayuki
× Sato, Masayuki |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域数物科学系 | |||||
書誌情報 |
平成27(2015)年度 科学研究費補助金 基盤研究(C) 研究成果報告書 en : 2015 Fiscal Year Final Research Report 巻 2013-04-01 - 2016-03-31, p. 6p., 発行日 2016-06-13 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 非線形格子に生じる非線形局在励起(Intrinsic Localized Mode, ILM)の移動や走行を妨げる2つの問題、パイエルス・ナバロ(PN)ポテンシャルと、余分な尾を励起するテイル発生について2つの研究を行った。PNポテンシャルについては、過飽和非線形格子を実験的に作成し、非線形性の飽和時に生じる幅変化分岐時にPNポテンシャルが0になることを線形スペクトル測定法にて確かめた。定常走行時に発生する尾は、非線形力のフーリエ成分が分散関係と交差するところでフォノンを共鳴励起することで生じる。2種類の非線形力の合成で交点での非線形力を0にすることで尾の発生を抑えられることを見つけた。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Two major problems of Intrinsic Localized Modes (ILM) in a nonlinear lattice were addressed;(1) a potential which prevents free translational motion of ILM called Peierls-Nabarro potential, and (2) generation of tail excitation behind the ILM when it travels. Suppression of PN potential in a saturable nonlinear lattice was confirmed experimentally by observing a liner spectrum when the ILM tales place width-widening (narrowing) bifurcation(s) by the saturation of the nonlinearity. The generation of tail excitation when the ILM travels at a constant speed is explained by a finite magnitude of a Fourier component of a nonlinear force where the ILM intersects with a dispersion curve. By mixing of two nonlinearities with a careful tuning, the sum Fourier amplitude can be eliminated and the generation of the tail excitation was suppressed. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 研究課題/領域番号:25400394, 研究期間(年度):2013-04-01 - 2016-03-31 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 出典:研究課題「大規模非線形格子の実験的研究」課題番号:25400394 (KAKEN:科学研究費助成事業データベース(国立情報学研究所)) (https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25400394/25400394seika/)を加工して作成 |
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著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/search/?qm=00266925 | |||||
関連名称 | https://kaken.nii.ac.jp/search/?qm=00266925 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25400394/ | |||||
関連名称 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25400394/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25400394/25400394seika/ | |||||
関連名称 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25400394/25400394seika/ |