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Nuclear spin assisted quantum tunnelling of magnetic monopoles in spin ice
http://hdl.handle.net/10228/00007297
http://hdl.handle.net/10228/000072975b4c7c77-a0a5-4656-97b9-50f1ed02a1de
名前 / ファイル | ライセンス | アクション |
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scunit-2019_05.pdf (2.9 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||
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公開日 | 2019-07-19 | |||||||||||
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 | ||||||||||||
タイトル | Nuclear spin assisted quantum tunnelling of magnetic monopoles in spin ice | |||||||||||
その他のタイトル | ||||||||||||
その他のタイトル | Nuclear Spin Assisted Quantum Tunnelling of Magnetic Monopoles in Spin Ice | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
著者 |
Paulsen, C.
× Paulsen, C.× Giblin, S.R.× Lhotel, E.× Prabhakaran, D.× 松平, 和之
WEKO
20843
× Balakrishnan, G.× Bramwell, S.T. |
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Extensive work on single molecule magnets has identified a fundamental mode of relaxation arising from the nuclear-spin assisted quantum tunnelling of nearly independent and quasi-classical magnetic dipoles. Here we show that nuclear-spin assisted quantum tunnelling can also control the dynamics of purely emergent excitations: magnetic monopoles in spin ice. Our low temperature experiments were conducted on canonical spin ice materials with a broad range of nuclear spin values. By measuring the magnetic relaxation, or monopole current, we demonstrate strong evidence that dynamical coupling with the hyperfine fields bring the electronic spins associated with magnetic monopoles to resonance, allowing the monopoles to hop and transport magnetic charge. Our result shows how the coupling of electronic spins with nuclear spins may be used to control the monopole current. It broadens the relevance of the assisted quantum tunnelling mechanism from single molecular spins to emergent excitations in a strongly correlated system. | |||||||||||
書誌情報 |
Nature Communications 巻 10, p. 1509-1-1509-8, 発行日 2019-04-03 |
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出版社 | ||||||||||||
出版者 | Nature Publishing Group | |||||||||||
DOI | ||||||||||||
関連タイプ | isIdenticalTo | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | https://doi.org/10.1038/s41467-019-09323-6 | |||||||||||
日本十進分類法 | ||||||||||||
主題Scheme | NDC | |||||||||||
主題 | 427 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 2041-1723 | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | Copyright (c) The Author(s) 2019 | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | Creative Commons Attribution 4.0 International License | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | http://creativecommons.org/licenses/by/4.0/ | |||||||||||
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 | ||||||||||||
7812 | ||||||||||||
資料タイプ | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Journal Article | |||||||||||
著者所属 | ||||||||||||
Institut Néel, C.N.R.S—Université Grenoble Alpes, BP 166, 38042 Grenoble, France. | ||||||||||||
著者所属 | ||||||||||||
School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, UK. | ||||||||||||
著者所属 | ||||||||||||
Institut Néel, C.N.R.S—Université Grenoble Alpes, BP 166, 38042 Grenoble, France. | ||||||||||||
著者所属 | ||||||||||||
Clarendon Laboratory, Physics Department, Oxford University, Oxford OX1~3PU, UK. | ||||||||||||
著者所属 | ||||||||||||
Kyushu Institute of Technology, Kitakyushu 804-8550, Japan. | ||||||||||||
著者所属 | ||||||||||||
Department of Physics, University of Warwick, Coventry CV4 7AL, UK. | ||||||||||||
著者所属 | ||||||||||||
London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, 17-19 Gordon Street, London WC1H 0AJ, UK. |