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VOLUME 39 (1984) | ISSUE 3 | PAGE 140
Measurement of the magnetic spectrum of YFeO3 by the method of submillimeter dielectric spectroscopy
The spectrum of the complex magnetic permeability of antiferromagnetic material YFe03 is measured in the frequency range ν = 6-20 cm -1 with a resolution of 0.001 cm~1 in a zero external magnetic field at T= 78-600 K. The behavior of two-magnon modes, which at Τ = 300 К are situated at 10 and 17.6 cm -1 and have a width of 0.1 and 0.05 cm"1, respectively, is studied.