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水素吸蔵合金PdDxにおける不均一な超伝導状態
https://it-hiroshima.repo.nii.ac.jp/records/1088
https://it-hiroshima.repo.nii.ac.jp/records/10880d86e4bb-8d4f-474b-ae0c-bc2f0ef55a47
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
research53_185-190.pdf (1.0 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
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| 公開日 | 2023-03-30 | |||||||||||
| タイトル | ||||||||||||
| タイトル | 水素吸蔵合金PdDxにおける不均一な超伝導状態 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Inhomogeneous superconducting state in hydrogen storage alloy PdDx | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | palladium | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | hydrogen | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | superconductivity | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Josephson junction | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | inhomogeneity | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | optical phonon | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||
| 著者 |
安塚, 周磨
× 安塚, 周磨
× Yasuzuka, Syuma
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Disorder affects the coherent state of a superconductor in characteristic ways. In conventional superconductors with s-wave pairing symmetry, magnetic defects act as strong pair breakers, whereas nonmagnetic defects have negligible effect. In this review, we will show that nonmagnetic defects promote the superconductivity mediated by optical phonon in palladium-hydride system. Temperature dependence of the critical current is well fitted by the Ambegaokar-Baratoff relation, suggesting the existence of Josephson junction between the superconducting(SC) grains. Appearance of the coherent SC grains through the Josephson coupling may be associated with the interaction between deuterium and lattice defects such as vacancies and dislocations. In addition, we theoretically investigated whether or not optical phonon modes formed by the collective motion of a large number of atoms exist in nonstoichiometric PdHx, possessing random or inhomogeneous lattices. We found that individual excitations compete with collective excitations in controlling the system’s randomness, and that optical phonons develop from localized phonon modes as the stoichiometry x increases. | |||||||||||
| 書誌情報 |
広島工業大学紀要. 研究編 巻 53, p. 185-190, 発行日 2019-02 |
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| 出版者 | ||||||||||||
| 出版者 | 広島工業大学 | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 13469975 | |||||||||||
| 書誌レコードID | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA11599110 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | publisher | |||||||||||
| フォーマット | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | application/pdf | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
