Abstract
Ferromagnetic resonance linewidths at room temperature for Li 0.79Zn 0.25Ti 0.83Fe (1.08− k) Mn 0.05O 4 polycrystalline ferrites sintered in oxygen atmosphere at 1050°C with k ranging from 0.00 to 0.10 are presented. The linewidths measured in these samples are comparable to most of commercial ferrites. Their values decrease with increasing k from 53 to 40 Oe. Magnetic after-effect spectra are also presented from 77 to 300 K. A relaxation process, whose amplitude decreases with increasing k, is observed at 250 K. A relationship between ferromagnetic resonance linewidth and magnetic after-effect spectra is presented.
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