To provide a magneto-optical recording medium that can eliminate ghost signals and expand and reproduce magnetic domains without applying reproduction magnetic fields.
The magneto-optical recording medium has a recording layer 5, an intermediate layer 4, and a reproduction layer 3. The reproduction layer 3 is made of a rare earth predominant transition metal alloy, and the intermediate layer 4 and the recording layer 5 are made of transition metal predominant are earth transition metal alloy. The intermediate layer 4 shows in-surface magnetization at 140°C or lower and cuts off the exchange coupling of the recording layer 5 and the reproduction layer 3. By the static magnetic repulsion between the intermediate layer 4 and the reproduction layer 3, the magnetic domains 3A transferred to the reproduction layer 3 expand to the minimum size of the magnetic domain. Thus, ghost signals are eliminated.
SEKINE MASAKI
TANI MANABU
IMAI SUSUMU
INOUE KAZUKO
SUZUKI YOSHIKAZU
KODA YASUHIKO
ISHIZAKI OSAMU
SHIMAZAKI KATSUSUKE
Next Patent: MAGNETO-OPTICAL DISK