Macroscale Nonlocal Transfer Of Superconducting Signatures To A Ferromagnet In A Cavity

Cavity spintronics recently heralded nonlocal magnonic signal transfer between magnetic samples. Here we show that by including superconductors in the cavity, we can make use of these principles to bring composite superconductor-ferromagnet systems to the macroscale. We analyze how a superconductor's ac conductivity influences the spin dynamics of a spatially separated magnet, and we discuss the potential impact on spintronic applications.