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    Method and apparatus for recording/reproducing magnetization information
    9.
    发明授权
    Method and apparatus for recording/reproducing magnetization information 有权
    用于记录/再现磁化信息的方法和装置

    公开(公告)号：US07042669B2

    公开(公告)日：2006-05-09

    申请号：US10788437

    申请日：2004-03-01

    申请人： Susumu Ogawa ,  Kenchi Ito

    发明人： Susumu Ogawa ,  Kenchi Ito

    IPC分类号： G11B5/02

    CPC分类号： G11B9/1472 ,  G11B5/743 ,  G11B9/14 ,  G11B9/1481 ,  G11B2005/0002

    摘要： An information storage device having a hard disk has a metal probe that is brought closely to the surface of a multilayer film that includes a magnetic metal layer, a non-magnetic metal layer, and a magnetic metal layer up to a nano-meter order distance from the surface. The distance between the metal probe and the surface of the multilayer film, as well as the voltage to be applied are changed to change the state of the quantum well generated in the multilayer film, thereby changing the magnetizing direction relatively between the two magnetic metal layers. To read magnetization information from the hard disk, a change of an optically induced tunnel current is used. The change of the tunnel current is caused by a change of a plasmon resonance energy according to a relative change of the magnetizing direction between the magnetic metal layers.

    摘要翻译： 具有硬盘的信息存储装置具有金属探针，该金属探针与包括磁性金属层，非磁性金属层和磁性金属层的多层膜的表面紧密接近，直到达到纳米级的距离 从表面。 改变金属探针与多层膜的表面之间的距离以及施加的电压，以改变在多层膜中产生的量子阱的状态，从而相对地改变两个磁性金属层之间的磁化方向 。 为了从硬盘读取磁化信息，使用光学感应隧道电流的改变。 隧道电流的变化是由等离子体共振能量根据磁性金属层之间的磁化方向的相对变化而改变引起的。