Control of spin wave properties in bioactive systems based on YIG metasurfaces/ordered polymer films with magnetic microreservoirs

In this paper, we propose configurations of a magnonic microwave guide with a two-dimensional array of magnetic elements located on the surface of the microwave guide. Using the micromagnetic modeling method based on the numerical solution of the Landau–Lifshitz–Gilbert equation, we show the possibility of controlling the characteristics of spin wave (SW) propagation in a structure with polymer planar ordered microreservoirs based on a yttrium iron garnet (YIG) film on a gallium gadolinium garnet (GGG) substrate by changing the configuration of the structure, varying the direction of the magnetization field and changing the magnetization of the magnetic material inside the microreservoir. It is shown that the proposed configurations of magnonic structures allow implementing methods for controlling spin-wave signals, which can find application in magnonic logic devices and sensorics of bioactive materials.