Abstract
In order to clarify the Pb 2+ contribution to the magneto-optical and magnetic properties in garnets (Pb 2+, Th 4+)-substituted YIG were grown by an LPE method onto gadolinium-gallium garnet (GGG) substrates and the Faraday rotation (FR) in the visible wavelength region and the Curie temperature T C were measured. A large negative FR was observed and the FR per Pb 2+ ion at 633 nm was found to be about 80% of that per Bi 3+ ion. T C increases with the increase of Pb 2+ in the films and Pb 2+ contribution to T C was found to be about 60% of Bi 3+ one.
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