Spin-wave switching using dynamic magnonic crystal

In this study, switching of the spin-wave propagation was investigated using an yttrium iron garnet (YIG) waveguide. A dynamic magnonic crystal (DMC) was designed to control the non-reciprocal surface spin waves. The DMC controlled the periodic modulation field on the YIG film and caused a strong Bragg reflection on the surface spin waves. The maximum effect of Bragg reflection was analyzed by the wavelet to be 95% of its intensity. The spin-wave switching by the DMC will be a promising method of carrier-flow control for constructing the integrated magnonic circuits.

Automated summary

By designing a dynamic magnonic crystal, the control of spin-wave propagation in a YIG waveguide was achieved, enabling the switching of spin waves and offering a promising method for carrier-flow control in the construction of integrated magnonic circuits.