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journal article·2022-03-01Open access

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

AIP Advances· Volume 12· Issue 3
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Source abstract

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.
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Research context

OpenAlex topics: Advanced Condensed Matter Physics · Physics of Superconductivity and Magnetism · Theoretical and Computational Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Liberal Arts, Korea University of Technology and Education 1 , Cheonan 31253, South Korea

Department of Physics and Astronomy, University of Delaware 2 , Newark, Delaware 19716, USA

Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign 3 , Urbana, Illinois 61801, USA

Department of Physics and Astronomy, Northwestern University 4 , Evanston, Illinois 60208, USA

Funding

Korea University of Technology and Education · Basic Energy Sciences · Office of Science · National Research Foundation of Korea

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