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

Wonbae Bang, M. T. Kaffash, M. T. Hossain, A. Hoffmann, J. B. Ketterson, M. B. Jungfleisch*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish (US)
Article number35131
JournalAIP Advances
Volume12
Issue number3
DOIs
StatePublished - Mar 1 2022

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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