Effect of alternating magnetic field on nature of ferrite garnet monocrystal film magnetization

The effect of a supplementary oscillating field on magneization of epitaxial films of (YBi)3(Fe, Ga)5O12 ferrite garnets with high percent of iron atom substitution has been investigated. It is shown that superposition of a supplementary perpendicular oscillating field to a multidomain film can decrease the threshold of Faraday cell reaction to values of the magnetic field characteristic for schemes with light-plane monodomain films