Hirohata, Atsufumi orcid.org/0000-0001-9107-2330, Baba, Yuji, Murphy, Benedict Andrew et al. (4 more authors) (2018) Magneto-optical detection of spin accumulation under the influence of mechanical rotation. Scientific Reports. pp. 1-8. ISSN 2045-2322
Abstract
The generation of spin-polarised carriers in a non-magnetic material holds the key to realise highly efficient spintronic devices. Recently, it has been shown that the large spin-orbit coupling can generate spin-polarised currents in noble metals such as tungsten and platinum. Especially, if small samples of such metals are rotated on a plane disc in the presence of a perpendicular magnetic field, the orbital angular momentum is altered leading to a segregation of spin up and spin down electrons, i.e., a spin current in the samples. This is manifested via an induced magnetic moment on the metal. In this letter, magneto-optical Kerr effect (MOKE) is used to detect induced magnetic moments which allows remote measurements on metal samples rotating at 100 ~ 210 Hz. Our results confirm the mechanical generation of spin-polarised currents via optical detection of spin accumulation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Authors, 2018. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 12 Jan 2018 09:40 |
Last Modified: | 26 Nov 2024 00:37 |
Status: | Published |
Refereed: | Yes |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126184 |
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