Information processing duplex based on spin-waves by micromagnetics simulation

Abstract

Duplexer is the electronic device that allows the bi-directional (duplex) communication between the receiver and the transmitter. It is also one of the circulator-derivatives whose recent research subject is size miniaturization. Spin-waves are emergent information carrier with GHz-frequency and non-Joule heating dissipation. In spin-wave circuits, the magnetic nonuniformities as well as change in wave vector make the path of spin-wave improbable. In this study, the model structure of spin-wave duplexer is proposed and studied by micromagnetics simulation, which have provided the realistic modelling of spin dynamics in numerous spin-wave studies. Combined with the halfvortex, which is the topological structure formed at the edge of magnetic film, the proposed model structure is able to guide the spin-wave in a robust and reproducible way.