Patent ID: 6030716
Filing Date: 2000-02-29
Classification: G11B,Y10S

Abstract:
A magneto-optical recording medium comprising:a magnetic reproducing layer having a Curie temperature Tc1, said magnetic reproducing layer having an easy direction of magnetization perpendicular to a film plane at a room temperature, and having an in-plane easy direction of magnetization when heated beyond a first predetermined temperature above said room temperature;a magnetic switch layer having a Curie temperature Tc2, said magnetic switch layer being formed over said reproducing layer and having an easy direction of magnetization perpendicular to said film plane at said room temperature; anda magnetic recording layer hang a Curie temperature Tc3, said magnetic recording layer being formed over said switch layer and having an easy direction of magnetization perpendicular to said film plane at said room temperature;wherein respective Curie temperatures, Tc1, Tc2 and Tc3 of said reproducing layer, switch layer and recording layer satisfy the relationship of Tc1>Tc2 and Tc3>Tc2.