ZnFe2O4-Fe3O4 und yig als magnetische dielektrika

The magnetic and electric fields found in zinc ferrite and yttrium iron garnet have been studied with the aid of electron diffraction. In these magnetic dielectrics, the magnetic field strength in e.m.u. proved to be comparable with the electric one in e.s.u.; i.e., both the values were estimated to be about 100. The wavelength of microwave to be absorbed by the materials concerned was evaluated to be about 1 mm in terms of the LC model.