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    Magnetic recording apparatus using magnetization reversal by spin injection with thermal assistance
    2.
    发明公开
    Magnetic recording apparatus using magnetization reversal by spin injection with thermal assistance 审中-公开
    使用磁化反转通过旋转注射热辅助的磁记录设备

    公开(公告)号：EP1727140A1

    公开(公告)日：2006-11-29

    申请号：EP06001349.7

    申请日：2006-01-23

    申请人： Hitachi, Ltd.

    发明人： Onogi, Toshiyuki Hitachi, Ltd. IP Office ,  Saitoh, Kazuo Hitachi, Ltd. IP Office

    IPC分类号： G11B9/14 ,  G11C11/15 ,  G11B9/04

    CPC分类号： G11B5/82 ,  G11B2005/0005 ,  G11B2005/0021

    摘要： The present invention provides a high density magnetic recording apparatus capable of performing a magnetic write to a magnetic memory cell therein by directly applying current into the memory cell without using external magnetic field; and performing a record read from the cell structure. To reduce the current density required for magnetization reversal by spin injection, the magnetic recording medium is irradiated with laser light so as to heat a magnetic memory cell to a temperature higher than the room temperature but lower than the Curie temperature. While the coercivity of the magnetic recording medium is effectively lowered, magnetic write operation is performed by applying external current into the magnetic memory cell.

    摘要翻译： 本发明提供了能够通过直接将电流施加到存储单元，而无需使用外部磁场执行其中的磁存储器单元的磁写入的高密度磁记录装置; 以及执行从所述电池结构中读取的记录。 为了减少通过自旋注入进行磁化反转所需的电流密度，磁记录介质用激光照射，以便作为一个磁存储单元加热到比室温高于居里温度更高，但低的温度。 而在磁记录介质的矫顽力有效地降低，磁写手术执行通过施加外部电流流入磁存储单元。