Temperature Behavior of Ferrimagnetic Resonance in Ferrites Located in Wave Guide

Abstract

Ferrimagnetic resonance has been investigated in several polycrystalline ferrites located in wave guide over a temperature range from 25°C to the Curie point of each ferrite. The ferrimagnetic resonance line width and the apparent gyromagnetic ratio of two types of ferrites were found to change with increasing temperature. The theories of Wangsness and Kittel have been utilized in interpreting the observed effects. The foregoing effects were shown to influence the temperature behavior of the microwave properties of ferrites away from resonance.