Kim, J.-V., Stamps, R. L. and Camley, R. E. (2016) Spin wave power flow and caustics in ultrathin ferromagnets with the Dzyaloshinskii-Moriya interaction. Physical Review Letters, 117(19), 197204. (doi: 10.1103/PhysRevLett.117.197204) (PMID:27858433)
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Abstract
The Dzyaloshinskii-Moriya interaction in ultrathin ferromagnets can result in nonreciprocal propagation of spin waves. We examine theoretically how spin wave power flow is influenced by this interaction. We show that the combination of the dipole-dipole and Dzyaloshinskii-Moriya interactions can result in unidirectional caustic beams in the Damon-Eshbach geometry. Morever, self-generated interface patterns can also be induced from a point-source excitation.
| Item Type: | Articles |
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| Additional Information: | This work was supported under an EPSRC grant and also by a Horizon 2020 project. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Stamps, Professor Robert |
| Authors: | Kim, J.-V., Stamps, R. L., and Camley, R. E. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| ISSN (Online): | 1079-7114 |
| Copyright Holders: | Copyright © 2016 American Physical Society |
| First Published: | First published in Physical Review Letters 117(19):197204 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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