Magneto-optical recording medium

A magneto-optical recording medium comprising recording means for recording information and a substrate for supporting said recording means,

• wherein said recording means includes:
• a recording magnetic film for recording the information, said recording magnetic film being formed of a perpendicular magnetic anisotropy film;
• and
• a readout magnetic film for optically reading out the information, said readout magnetic film physically coupled to the substrate and being capable of being magnetically coupled with said recording magnetic film by an exchange-coupling force;
• wherein said readout magnetic film has in-plane magnetic anisotropy at room temperature, and when the temperature of said readout magnetic film reaches a predetermined temperature by a readout light irradiation, the readout magnetic film is a perpendicular magnetic anisotropy film, said predetermined temperature being set to be higher than room temperature and lower than a Curie temperature of said readout magnetic film by adjusting a composition of said readout magnetic film, and
• wherein said readout magnetic film is formed of a film having a compensation temperature which is equal to or higher than said predetermined temperature, said film being a perpendicular magnetic anisotropy film at about the compensation temperature, the compensation temperature of the readout magnetic film is equal to or higher than 80° C. and lower than a curie temperature of said recording magnetic film, said readout magnetic film having the composition of
• Gdx{FeyCo(1-y)}(1-x)
• where 0.23≦x≦0.28 and 0.5≦y≦0.75.