Ei Shigematsu

Tunable magnon polaritons via Eddy-current-induced dissipation in metallic-banded YIG spheres

Abstract We demonstrate a robust method to dynamically tune magnon dissipation in yttrium iron garnet spheres by equipping a metallic band around the sphere’s equator, enabling precise control over magnon-photon coupling states. The collective magnetization dynamics in the YIG sp...