Article thumbnail

Brillouin light scattering study of magnetic-element normal modes in a square artificial spin ice geometry

By Y Li, G Gubbiotti, F Casoli, FJT Goncalves, SA Morley, MC Rosamond, EH Linfield, CH Marrows, S McVitie and RL Stamps

Abstract

We report the results, from experimental and micromagnetic studies, of the magnetic normal modes in artificial square spin ice systems consisting of ferromagnetic-monodomain islands. Spin wave properties are measured by Brillouin light scattering. The mode spectra contain several branches whose frequencies are sensitive to the magnitude and in-plane orientation of an applied magnetic field. We also identify soft modes that exhibit different behaviour depending on the direction of the applied magnetic field. The obtained results are well described with micromagnetic simulations of independent magnetic elements arranged along two sublattices

Publisher: 'IOP Publishing'
Year: 2017
DOI identifier: 10.1088/1361-6463/50/1/015003
OAI identifier: oai:eprints.whiterose.ac.uk:107131

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.