Li, Y., Gubbiotti, G., Casoli, F., Goncalves, F., Morley, S., Rosamond, M., Linfield, E., Marrows, C., McVitie, S. and Stamps, R. (2017) Brillouin light scattering study of magnetic-element normal modes in a square artificial spin ice geometry. Journal of Physics D: Applied Physics, 50(1), 015003. (doi: 10.1088/1361-6463/50/1/015003)
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Abstract
We report the results, from experimental and micromagnetic studies, of the magnetic normal modes in artificial square spin ice systems consisting of ferromagnetic-monodomain islands. Spin-wave properties are measured by Brillouin light scattering. The mode spectra contain several branches whose frequencies are sensitive to the magnitude and in-plane orientation of an applied magnetic field. We also identify soft modes that exhibit different behaviours depending on the direction of the applied magnetic field. The obtained results are well described with micromagnetic simulations of independent magnetic elements arranged along two sublattices.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | McVitie, Professor Stephen and Stamps, Professor Robert and Li, Miss Yue |
| Authors: | Li, Y., Gubbiotti, G., Casoli, F., Goncalves, F., Morley, S., Rosamond, M., Linfield, E., Marrows, C., McVitie, S., and Stamps, R. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Journal of Physics D: Applied Physics |
| Publisher: | IOP Publishing |
| ISSN: | 0022-3727 |
| ISSN (Online): | 1361-6463 |
| Published Online: | 23 November 2016 |
| Copyright Holders: | Copyright © 2017 IOP Publishing Ltd |
| First Published: | First published in Journal of Physics D: Applied Physics 50(1):015003 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Data DOI: | 10.5525/gla.researchdata.358 |
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