Ultrastrong magnon-magnon coupling and chiral spin-texture control in a dipolar 3D multilayered artificial spin-vortex ice
| Author(s) | Dion, Troy | |
| Author(s) | Stenning, Kilian D. | |
| Author(s) | Vanstone, Alex | |
| Author(s) | Holder, Holly H. | |
| Author(s) | Sultana, Rawnak | |
| Author(s) | Alatteili, Ghanem | |
| Author(s) | Martinez, Victoria | |
| Author(s) | Kaffash, Mojtaba Taghipour | |
| Author(s) | Kimura, Takashi | |
| Author(s) | Oulton, Rupert F. | |
| Author(s) | Branford, Will R. | |
| Author(s) | Kurebayashi, Hidekazu | |
| Author(s) | Iacocca, Ezio | |
| Author(s) | Jungfleisch, M. Benjamin | |
| Author(s) | Gartside, Jack C. | |
| Date Accessioned | 2024-05-28T20:01:18Z | |
| Date Available | 2024-05-28T20:01:18Z | |
| Publication Date | 2024-05-14 | |
| Description | This article was originally published in Nature Communications. The version of record is available at: https://doi.org/10.1038/s41467-024-48080-z. © The Author(s) 2024. This research was featured in UDaily on 10/19/2024 at: https://www.udel.edu/udaily/2024/october/neural-network-artificial-intelligence-neuromorphic-computing-benjamin-jungfleisch/ | |
| Abstract | Strongly-interacting nanomagnetic arrays are ideal systems for exploring reconfigurable magnonics. They provide huge microstate spaces and integrated solutions for storage and neuromorphic computing alongside GHz functionality. These systems may be broadly assessed by their range of reliably accessible states and the strength of magnon coupling phenomena and nonlinearities. Increasingly, nanomagnetic systems are expanding into three-dimensional architectures. This has enhanced the range of available magnetic microstates and functional behaviours, but engineering control over 3D states and dynamics remains challenging. Here, we introduce a 3D magnonic metamaterial composed from multilayered artificial spin ice nanoarrays. Comprising two magnetic layers separated by a non-magnetic spacer, each nanoisland may assume four macrospin or vortex states per magnetic layer. This creates a system with a rich 16N microstate space and intense static and dynamic dipolar magnetic coupling. The system exhibits a broad range of emergent phenomena driven by the strong inter-layer dipolar interaction, including ultrastrong magnon-magnon coupling with normalised coupling rates of Δf/ν =0.57, GHz mode shifts in zero applied field and chirality-control of magnetic vortex microstates with corresponding magnonic spectra. | |
| Sponsor | This work was supported by the Royal Academy of Engineering Research Fellowships, awarded to J.C.G. T.D. is supported by International Research Fellow of Japan Society for the Promotion of Science (Postdoctoral Fellowships for Research in Japan) JSPS KAKENHI Grant No. 21F20790. J.C.G., W.B. and H.K. were supported by EPSRC grant EP/X015661/1. K.D.S. was supported by The Eric and Wendy Schmidt Fellowship Program and the Engineering and Physical Sciences Research Council (Grant No. EP/W524335/1). Research at the University of Delaware (M.B.J., M.T.K. and R.S.) was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0020308. The authors acknowledge the use of facilities and instrumentation supported by NSF through the University of Delaware Materials Research Science and Engineering Center, DMR-2011824. J.C.G. and M.B.J. were supported by EPSRC ECR International Collaboration Grant ‘Three-Dimensional Multilayer Nanomagnetic Arrays for Neuromorphic Low-Energy Magnonic Processing’ EP/Y003276/1. H.H. was supported by the EPSRC DTP award EP/T51780X/1. G.A. and E.I. acknowledge support from the National Science Foundation under Grant No. 2205796. A.V. was supported by EPSRC IAA funding. Simulations were performed on the Imperial College London Research Computing Service73. The authors would like to thank David Mack for excellent laboratory management and Steve Cussell for excellent technical workshop services. | |
| Citation | Dion, T., Stenning, K.D., Vanstone, A. et al. Ultrastrong magnon-magnon coupling and chiral spin-texture control in a dipolar 3D multilayered artificial spin-vortex ice. Nat Commun 15, 4077 (2024). https://doi.org/10.1038/s41467-024-48080-z | |
| ISSN | 2041-1723 | |
| URL | https://udspace.udel.edu/handle/19716/34428 | |
| Language | en_US | |
| Publisher | Nature Communications | |
| dc.rights | Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| Keywords | metamaterials | |
| Keywords | spintronics | |
| Title | Ultrastrong magnon-magnon coupling and chiral spin-texture control in a dipolar 3D multilayered artificial spin-vortex ice | |
| Type | Article |
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