| 摘要 |
PURPOSE:To obtain the material for an optomagnetic recording medium having high recording sensitivity and good oxidative-corrosion resistance and light-transmitting properties by using a metallic oxide magnetic material consisting of a specific composition. CONSTITUTION:A part of Fe atoms in a metallic ompound of hyxagonal system expressed by MeO.n[Fe2O3] is substituted by Al or In atoms and the composition is changed into that expressed by MeO.n[Alx.InyFe2-(x+y)O3] wherein Me= Ba or Sr, O<X<=0.8, 0<Y<0.6, 5<=n<=6. Thus, recording and reproduction by a semiconductor laser beam by reducing Curie temperature with a properly high coercive force required for a memory.
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