ocr: Conventional MO disk structure Quadri-value MO disk structure All alloy PICo (Piatinum and cobaltallay) Ibfeco SIN (Terbium,iron, and cobalveloy) Ibfelo TbfeCo SIN (Terbium,iron, and cobolt alloy) (Terbium,iron, ondrcobalv-elloy) SIN (Dielectric) SIN (Dielectric) Base Base - * - SIN (silicon nitrite enhances Kerr effect, prevents oxidation) Base (substrate polycarbonite [plastic]) Figure I: Conventional magneto-optical disk structure compared zoith quadri-value magneto-optical disk structures
