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The thermomagnetic recording on thin films is currently one of the most perspective methods for copying records with high density and weak residual magnetization, for example, in forensics. The technology of thermomagnetic recording is in demand to increase the information recording density of up to 10 Tbit per 1 squre inch. An intensive search for the most effective materials to create the carriers of thermomagnetic recording is being performed. The results of studying the domain structure of the high-coercive ferrite-garnet films, synthesized by liquid-phase epitaxy with low Curie temperature as the carriers of thermomagnetic recording, have been presented. The domain structure of the PC floppy disk has been copied onto the ferrite-garnet film and has been studied by method of the magnetic force microscopy. It has been shown that the resolution for thermomagnetic recording on the ferrite-garnet film is limited by a network of defects in the crystal, by the structure and morphology of the surface, connected with it, and by the mismatch parameters of the substrate-film lattices. The obtained results demonstrate that the high-coercive ferrite-garnet films with low Curie temperature can be applied as the carriers of thermomagnetic recording.

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