Spin dynamics in permalloy nano-ellipses for honeycomb and square lattices

We report experimental and theoretical studies of spin dynamics in lattice structures of permalloy (Ni80Fe20) nano-ellipses, with four different types of networks including honeycomb and square lattices. The lattices are patterned at the center line of the co-planar wave guide and consist of non-con...

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Veröffentlicht in:AIP advances 2022-03, Vol.12 (3), p.035131-035131-5
Hauptverfasser: Bang, Wonbae, Kaffash, M. T., Hossain, M. T., Hoffmann, A., Ketterson, J. B., Jungfleisch, M. B.
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Sprache:eng
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Zusammenfassung:We report experimental and theoretical studies of spin dynamics in lattice structures of permalloy (Ni80Fe20) nano-ellipses, with four different types of networks including honeycomb and square lattices. The lattices are patterned at the center line of the co-planar wave guide and consist of non-contacting or contacting ellipses. Micromagnetic simulations show excellent agreement with the broadband ferromagnetic resonance (FMR) experimental results. We find the existence of a spin-wave mode localized in the vertex region of the contacting nano-ellipse network. Our finding has important implications when designing an artificial spin ice (ASI) network for functional magnonics.
ISSN:2158-3226
2158-3226
DOI:10.1063/9.0000307