Abstract
The effects of various reflecting layers on the magneto-optical recoding properties of BiGaYIG films are reported. The thickness and composition of the reflecting layer are important for thermomagnetic recording quality. A static tester was build to write domains at various temperatures and fields. In the samples tested, the written domains were regular, reproducible and stable in the presence of magnetic stray fields. Films with thicker Al+Cr and Al-doped Cr reflectors were found to be easier to write domains.
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