Iacocca, E., Gliga, S. and Heinonen, O. G. (2020) Tailoring spin-wave channels in a reconfigurable artificial spin ice. Physical Review Applied, 13(4), 044047. (doi: 10.1103/PhysRevApplied.13.044047)
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Abstract
Artificial spin ices are ensembles of geometrically arranged interacting nanomagnets that have shown promising potential for the realization of reconfigurable magnonic crystals. Such systems allow for the manipulation of spin waves on the nanoscale and their potential use as information carriers. However, there are presently two general obstacles to the realization of artificial spin-ice-based magnonic crystals: the magnetic state of artificial spin ices is difficult to reconfigure and the magnetostatic interactions between the nanoislands are often weak, preventing mode coupling. We demonstrate, using micromagnetic modeling, that coupling a reconfigurable artificial spin-ice geometry made of weakly interacting nanomagnets to a soft magnetic underlayer creates a complex system exhibiting dynamically coupled modes. These give rise to spin-wave channels in the underlayer at well-defined frequencies, based on the artificial spin-ice magnetic state, which can be reconfigured. These findings open the door to the realization of reconfigurable magnonic crystals with potential applications for data transport and processing in magnonic-based logic architectures.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Gliga, Dr Sebastian |
| Authors: | Iacocca, E., Gliga, S., and Heinonen, O. G. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review Applied |
| Publisher: | American Physical Society |
| ISSN: | 2331-7019 |
| ISSN (Online): | 2331-7019 |
| Published Online: | 17 April 2020 |
| Copyright Holders: | Copyright © 2020 American Physical Society |
| First Published: | First published in Physical Review Applied 13(4): 044047 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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