Bloch oscillations of backward volume magnetostatic spin waves

Abstract

This is the final version. Available from the American Physical Society via the DOI in this recordWe have used numerical micromagnetic simulations to propose a feasible candidate system in which Bloch oscillations of spin waves could be observed experimentally. Our simulations demonstrate these phenomena for backward volume magnetostatic spin waves (BVMSWs) in a film of yttrium-iron-garnet in a spatially varying bias magnetic field comprising a sinusoidal and gradient contributions. Despite the complex character of the BVMSW dispersion relation, the spin-wave packets are distinctly confined by the field gradient, while showing only minor broadening over the simulation time.Engineering and Physical Sciences Research Council (EPSRC)European Union Horizon 202

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