The frequency shift and temperature dependence of g-values and of half linewidth found in the resonance absorption experiment in various ferrites were studied in the frequency range from 9, 450 MC/sec to 47, 000 MC/sec at the room and at the liquid nitrogen temperature. The real spectroscopic splitting factors g which are independent of frequency and temperature for nickel, manganse ferrites, nickel-zinc, manganese-zinc binary ferrites and other various ferrites were determined by using the corrected Kittel's resonance formula, including a new internal field in the materials found experimentally. The semi-empirical formula for the internal field was proposed and its nature was discussed on all simple ferrites and their binary ferrites from various aspects experimentally ; moreover, anomalous g-values of the cobalt-zinc ferrite were explained on this ground. It was also found that the half linewidths of the nickel-zinc and manganese-zinc binary ferrites increased at high zinc ferrite contents.
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 6 89-108, 1954