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Critical Temperature in Bulk Ultrafine-Grained Superconductors of Nb, V, and Ta Processed by High-Pressure Torsion
http://hdl.handle.net/10228/00008178
http://hdl.handle.net/10228/0000817880b5c778-1cca-4eba-b9a7-3e4cc059b4f1
名前 / ファイル | ライセンス | アクション |
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scunit-2020_74.pdf (2.1 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||
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公開日 | 2021-04-15 | |||||
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 | journal article | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Critical Temperature in Bulk Ultrafine-Grained Superconductors of Nb, V, and Ta Processed by High-Pressure Torsion | |||||
言語 | ||||||
言語 | eng | |||||
著者 |
Nishizaki, Terukazu
× Nishizaki, Terukazu× Edalati, Kaveh× Lee, Seungwon× 堀田, 善治× Akune, Tadahiro× Nojima, Tsutomu× Iguchi, Satoshi× Sasaki, Takahiko |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This overview describes the progressive results of the superconducting critical temperature in bulk nanostructured metals (niobium, vanadium and tantalum) processed by high-pressure torsion (HPT). Bulk nanostructured superconductors provide a new route to control superconducting property, because ultrafine-grain structures with a high density of grain boundaries, dislocations, and other crystalline defects modify the superconducting order parameter. The critical temperature Tc in Nb increases with the evolution of grain refinement owing to the quantum confinement of electrons in ultrafine grains. In V and Ta, however, Tc decreases at a certain HPT revolution number (i.e. at certain strain levels). The different behaviour of Tc in the three materials is explained by the competition effect between the quantum size effect and disorder effect; these effects are characterized by the parameters of grain size, electron mean free path, and superconducting coherence length. | |||||
書誌情報 |
en : Materials Transactions 巻 60, 号 7, p. 1367-1376, 発行日 2019-06-25 |
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出版社 | ||||||
言語 | ja | |||||
出版者 | 日本金属学会 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.2320/matertrans.MF201940 | |||||
CRID | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | URI | |||||
関連識別子 | https://cir.nii.ac.jp/crid/1390282763123767168 | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 427 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1151294X | |||||
ISSN | ||||||
収録物識別子タイプ | EISSN | |||||
収録物識別子 | 1347-5320 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1345-9678 | |||||
著作権関連情報 | ||||||
権利情報 | Copyright (c) 2019 The Japan Institute of Metals and Materials | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | high-pressure torsion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | superconductivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | bulk ultrafine-grained metals | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | niobium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | vanadium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tantalum | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | critical temperature | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetization | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | resistivity | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
査読の有無 | ||||||
値 | yes | |||||
連携ID | ||||||
8688 |