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Giant spin hydrodynamic generation in laminar flow
https://repo.qst.go.jp/records/84706
https://repo.qst.go.jp/records/84706aa2a2630-86c3-4883-ab7d-d9d5d210434b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-10-01 | |||||
タイトル | ||||||
タイトル | Giant spin hydrodynamic generation in laminar flow | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Takahashi, R.
× Takahashi, R.× Chudo, H.× Matsuo, M.× Kazuya, Harii× Ohnuma, Y.× Maekawa , S.× Saitoh, E.× Kazuya, Harii |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Hydrodynamic motion can generate a flux of electron-spin’s angular momentum via the coupling between fluid rotation and electron spins. Such hydrodynamic generation, called spin hydrodynamic generation (SHDG), has recently attracted attention in a wide range of fields, especially in spintronics. Spintronics deals with spin-mediated interconversion taking place on a micro or nano scale because of the spin-diffusion length scale. To be fully incorporated into the interconversion, SHDG physics should also be established in such a minute scale, where most fluids exhibit a laminar flow. Here, we report electric voltage generation due to the SHDG in a laminar flow of a liquid-metal mercury. The experimental results show a scaling rule unique to the laminar-flow SHDG. Furthermore, its energy conversion efficiency turns out to be about 105 greater than of the turbulent one. Our findings reveal that the laminar-flow SHDG is suitable to downsizing and to extend the coverage of fluid spintronics. | |||||
書誌情報 |
Nature Communications 巻 11, p. 3009, 発行日 2020-05 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2041-1723 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/s41467-020-16753-0 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.nature.com/articles/s41467-020-16753-0 |