Domain formation study in ferrite-garnet Y2.6Sm0.4Fe3.8Ga1.2O2 film in external magnetic field

A.M.Afonin, V.F.Klepikov, I.K.Pukhov, Yu.V.Sereda

Scientific and Technological Center for Electrophysical Treatment, National Academy of Sciences of Ukraine, 28 Chernyshevsky St., 310002 Kharkiv, Ukraine

Received December 10, 1997; in final form, December 29, 1998

Formation of magnetic domains has been studied experimentally in uniaxial ferrite-garnet film of Y2.6Sm0.4Fe3.8Ga1.2O2 composition. It is shown that visual observation of the domain structure picture after the planar magnetic field action on the ferrite-garnet film can offer a simple and essentially exact method to reveal the defect sites. The cubic anisotropy is found to be the main one in the film.

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