“…It is valuable to develop some quantum methods to study the microwave properties of magnetic multilayer films. According to earlier work, the microwave properties of a magnetic multilayer thin film are significantly affected by magnetic surface anisotropies [13,25,27,28], interface anisotropies [13,24,25,26], interfacial couplings [24,25,26] and an external magnetic field [14,25,28]. Therefore, our present proposal is to utilize the linear spin-wave approach and Green's function technique to study the SWR frequency (including FMR frequency) in a ferromagnetic multilayer thin film with single-ion surface, interface and bulk anisotropies.…”