Micromagnetic Simulation of Propagation of Spin Waves in In-Plane Magnetized Crosses Based on Ferrite Microwaveguides of Different Width

Abstract

Propagation of spin waves in a structure based on orthogonal waveguides of different widths (magnetic crosses) has been numerically investigated. For the case of an in-plane magnetized thin-film ferrite structure in the form of a dual cross formed by three straight microwaveguides, the effect of the order of placement of waveguides of different width in the path of the spin wave on the amplitude of output signals recorded at different ends of the structure has been analyzed. It has been shown that the ratio of the amplitudes of the output signals arriving from different arms of the “cross” can be changed by changing the order of succession of narrow and wide waveguides with respect to the input transducer.