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Proposal for a standard micromagnetic problem: Spin wave dispersion in a magnonic waveguide

Research Area: Magnonics Year: 2013
Type of Publication: Article Keywords: magnonic crystal, micromagnetic simulation
Journal: IEEE Transactions on Magnetics Volume: 49
Number: 1 Pages: 524
Copyright IEEE Trans. Magn. 2013
In this paper, we propose a standard micromagnetic problem, of a nanostripe of permalloy. We study the magnetization dynamics and describe methods of extracting features from simulations. Spin wave dispersion curves, relating frequency and wave vector, are obtained for wave propagation in different directions relativeto the axis of the waveguide and the external appliedfield. Simulation results using bothfinite element (Nmag) andfinite difference (OOMMF) methods are compared against analytic results, for different ranges of the wave vector.
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