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

書誌事項

タイトル別名
  • Preparation of Highly Oriented Thin Film Exhibiting a Magneto-Optical Effect in Bi, Al Doped YIG
  • Bi Al オ ドープシタ YIG ノ ジキ コウガク コウカ オ シメス コ

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抄録

Substituted yttrium iron garnet (Bi, Al:YIG, BiXY3-XAlYFe5-YO12) were prepared by sol-gel process. Nitrates of bismuth, aluminium, yttrium and iron were used as the starting materials. The highly oriented thin film was obtained on a substrate of gadolinium gallium garnet (GGG) single crystal. The square type ratio (magnetization of the plane perpendicular to the magnetic field (σS<sub>⊥</sub>)/magnetization of the plane parallel to the magnetic field (σS<sub>//</sub>)) of the thin film, 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 angle (θF) was 50°/μm for the Bi2YAl0.4Fe4.6O12 film.

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