Nambu, Y, Barker, J orcid.org/0000-0003-4843-5516, Okino, Y et al. (12 more authors) (2020) Observation of Magnon Polarization. Physical Review Letters, 125 (2). 027201. ISSN 0031-9007
Abstract
We measure the mode-resolved direction of the precessional motion of the magnetic order, i.e., magnon polarization, via the chiral term of inelastic polarized neutron scattering spectra. The magnon polarization is a unique and unambiguous signature of magnets and is important in spintronics, affecting thermodynamic properties such as the magnitude and sign of the spin Seebeck effect. However, it has never been directly measured in any material until this work. The observation of both signs of magnon polarization in Y3Fe5O12 also gives direct proof of its ferrimagnetic nature. The experiments agree very well with atomistic simulations of the scattering cross section.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 American Physical Society. This is an author produced version of an article published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
Funding Information: | Funder Grant number Royal Society URF\R1\180333 |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Jun 2020 17:21 |
Last Modified: | 03 Aug 2020 14:36 |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevLett.125.027201 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:161661 |