Patent ID: 6572957
Filing Date: 2003-06-03
Classification: G11B,Y10T

Abstract:
A magneto-optical recording medium comprising:a recording layer including a multi-layer magnetic film having a four-layered structure comprising a first magnetic displacement layer, a second magnetic domain wall movement inhibiting layer, a third magnetic switch layer, and a fourth magnetic memory layer formed in this order from a portion which is irradiated with a reproducing light; when a Curie temperature of said first magnetic layer is defined as TC1, a Curie temperature of said second magnetic layer is defined as TC2, a Curie temperature of said third magnetic layer is defined as TC3, and, a Curie temperature of said fourth magnetic layer is defined as TC4, the following relationship is met: TC1>TC2>TC3, TC4>TC3; andWhen a magnetic anisotropy of said first magnetic layer is defined as KU1 and a magnetic anisotropy of said second magnetic layer is defined as KU2, the following relationship is met: KU2>KU1.