Novel Technique For Ferrimagnetic Resonance Measurements

The ferrimagnetic resonance (FMR) linewidth, DELTA-H, and resonant magnetic field of single crystal (Mn Doped) Ba2Zn2Fe12O22 were measured as a function of frequency from 2 to 20 GHz. These measurements were performed were a slot-coplanar device. The linewidth and resonant frequency measurements were found to compare well with those obtained using a standard ferrimagnetic resonance cavity technique and the data was also in agreement with the behavior predicted by Landau-Lifshitz theory with the damping parameter alpha = 0.0014.