Julius de Rojas
Tuning magnon spectra via interlayer coupling in pseudo-3D nanostructured artificial spin ice arrays
de Rojas, Julius; Atkinson, Del; Adeyeye, Adekunle O.
Authors
Professor Del Atkinson del.atkinson@durham.ac.uk
Professor
Professor Adekunle Adeyeye adekunle.o.adeyeye@durham.ac.uk
Head of College
Abstract
We have investigated the static and dynamic behavior of “pseudo-3D” trilayer square artificial spin ice structures. The trilayer stack comprises of two ferromagnetic Ni81Fe19 (Permalloy, Py) layers with 30 and 70 nm thickness, separated by a nonmagnetic copper layer of varying thickness from 2 to 40 nm. We show that the copper thickness enables interlayer coupling between layers to be finely controlled, leading to bespoke magnetization states and resonance spectra tuning. Our results demonstrate a further route to control the interaction in artificial spin ices beyond planar structures, enabling tunable magnetization dynamics, a potentially programmable degree of freedom for magnonic and microwave devices.
Citation
de Rojas, J., Atkinson, D., & Adeyeye, A. O. (2023). Tuning magnon spectra via interlayer coupling in pseudo-3D nanostructured artificial spin ice arrays. Applied Physics Letters, 123(23), Article 232407. https://doi.org/10.1063/5.0177447
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 18, 2023 |
Online Publication Date | Dec 8, 2023 |
Publication Date | Dec 4, 2023 |
Deposit Date | Jan 22, 2024 |
Publicly Available Date | Jan 22, 2024 |
Journal | Applied Physics Letters |
Print ISSN | 0003-6951 |
Electronic ISSN | 1077-3118 |
Publisher | American Institute of Physics |
Peer Reviewed | Peer Reviewed |
Volume | 123 |
Issue | 23 |
Article Number | 232407 |
DOI | https://doi.org/10.1063/5.0177447 |
Keywords | Physics and Astronomy (miscellaneous) |
Public URL | https://durham-repository.worktribe.com/output/2161054 |
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Copyright Statement
All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://
creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/5.0177447
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