| 摘要 |
PURPOSE:To provide a magneto-optical recording medium enough large in Kerr rotation angle, not only able to have reading out in good signal to noise ratio but also high in recording sensitivity and having a proper thermal stability. CONSTITUTION:As a magnetic film of the magneto-optical recording medium, an alloy magnetic film consisting of five elements system (Dy-Gd-Tb-Fe-Co) amorphous allay having an easily magnetized axis at the perpendicular direction to the face of the film, being 190-230 deg.C Curie temp., >=0.3 Kerr rotation angle and satisfying formula {Dy1-z(Gd1-wTbw)z}1-y (Fe1-xCox)y in the formula, 0.2<=x<=0.3, 0.5<=y<=0.9, 0.3<=z<=0.7, 0<=w<=1 is used. |
