Bi, AlをドープしたYIGの磁気光学効果を示す高配向した薄膜の作製

概要

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Substituted yitrium iron garnet (Bi, Al : YlG, Bi_xY_<3-x> Al_YFe_<5-Y>O_<12>) were prepared by sol gel process. Ni trates of bismuth, aluminium, yitriurn and iron were used as the starting materials. The highly oriented thin film was obtained on a substrate of gadolillium gallium garnet (GGG) single crystal. The square type ratio (magnetizatiou of the plane perpendicular to the mag netic field (σs_⊥) /magnetization of the plane parallel to the magnetic field (σs_<//>) of the thin finn, preferentially oriented in the perpendicular plane as a result of the Al substitution for the iron at the Fe site, exhibited a very large value , greater than 3.5.The Faraday rotation an gle (θ_F) was 50°/μm for the Bi_2YAl_<0.4>Fe_<4.6>O_<12> film.
社団法人日本セラミックス協会の論文
1994-09-01