Transformation of spin-wave resonance spectra in multilayer films upon passage through the Curie point of the locking layer

Abstract

A technique has been developed for controlling the degree of spin locking in two-and three-layer ferrite-garnet films. Variation of the degree of locking is achieved by varying the temperature and by passing one of the layers of the film through its Curie point. A fundamental difference in the nature of the transformation of the spin-wave resonance spectra taking place near the Curie point of the locking layer in films with initially symmetric and asymmetric boundary conditions is identified.