High-Power Characteristics of Low-Magnetization Garnets

Abstract
Large signal ferromagnetic resonance measurements have been performed on low-magnetization polycrystalline garnets in which aluminum or gallium has been partially substituted for iron. Measurements have been made at 1.3, 5.5, and 9.3 kMc. For some samples the temperature was varied between 77°K and the Curie temperature. The results are in qualitative agreement with recent theories of ferromagnetic relaxation.