公开(公告)号：US5457582A

公开(公告)日：1995-10-10

申请号：US348679

申请日：1994-12-02

申请人： Randall H Victora ,  Tukaram K. Hatwar

发明人： Randall H Victora ,  Tukaram K. Hatwar

IPC分类号： G11B11/105 ,  G11B13/04

CPC分类号： G11B11/10586 ,  G11B11/10515

摘要： The present invention pertains to a storage medium for use in a magneto-optical storage system. The storage medium comprises two layers of magnetic material, a storage layer and a read layer. The magnetic material of the storage layer has perpendicular (or vertical) axis of orientation; and within the storage layer the direction of magnetic orientation is either parallel or anti-parallel (up or down) relative to the direction of an impinging read radiation beam. In this storage system, the direction of orientation of magnetic material in one direction represents a first logical state, and a direction of orientation in the opposite direction represents a second logical state. The direction of orientation is thus a function of stored data. The read layer has parallel magnetic orientation and a transition temperature above the operating temperature but below the read temperature such that the axis of orientation of the magnetic material and the direction of orientation of the read layer during readout is the same as the corresponding portion of the storage layer.

摘要翻译： 本发明涉及用于磁光存储系统的存储介质。 存储介质包括两层磁性材料，存储层和读取层。 存储层的磁性材料具有垂直（或垂直）取向轴; 并且在存储层内，磁性取向的方向相对于入射的读取辐射束的方向是平行的或反平行的（向上或向下）。 在该存储系统中，磁性材料在一个方向上的取向方向表示第一逻辑状态，相反方向上的取向方向表示第二逻辑状态。 因此，取向的方向是存储的数据的函数。 读取层具有平行磁取向和高于工作温度但低于读取温度的转变温度，使得磁性材料的取向轴线和读出期间读取层的取向方向与相应的部分相同 存储层。