Novel technique for ferrimagnetic resonance measurements

The ferrimagnetic resonance (FMR) linewidth, Delta H, and resonant magnetic field of single-crystal (Mn-doped) Ba/sub 2/Zn/sub 2/Fe/sub 12/O/sub 22/ were measured as a function of frequency from 2 to 20 GHz. These measurements were performed utilizing a slot-coplanar device. The linewidth and resonant frequency measurements were found to compare well with those obtained using a standard FMR cavity technique, and the data were also in agreement with the behavior predicted by Landau-Lifshitz theory with the damping parameter alpha =0.0014.<
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