Method and system for magnetic recording using self-organized magnetic nanoparticles
    1.
    发明授权
    Method and system for magnetic recording using self-organized magnetic nanoparticles 失效
    使用自组织磁性纳米粒子的磁记录方法和系统

    公开(公告)号:US07781078B2

    公开(公告)日:2010-08-24

    申请号:US12241509

    申请日:2008-09-30

    IPC分类号: G11B5/65 G11B5/712

    摘要: A method and system for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles on a substrate, wherein the surfactant coated nanoparticles represent first bits of recorded information. The surfactant coating is then removed from selected of the surfactant coated nanoparticles. The selected nanoparticles with their surfactant coating removed may then be designated to represent second bits of recorded information. The surfactant coated nanoparticles have a first saturation magnetic moment and the selected nanoparticles with the surfactant coating removed have a second saturation magnetic moment. Therefore, by selectively removing the surfactant coating from certain nanoparticles, a write operation for recording the first and second bits of information may be performed. A read operation may be carried out by detecting the different magnetic moments of the surfactant coated nanoparticles and the non-surfactant coated nanoparticles.

    摘要翻译: 公开了一种使用自组织磁性纳米颗粒进行磁记录的方法和系统。 该方法可以包括在衬底上沉积表面活性剂涂覆的纳米颗粒,其中表面活性剂涂覆的纳米颗粒表示记录信息的第一位。 然后从选择的表面活性剂涂覆的纳米颗粒中除去表面活性剂涂层。 然后将其去除其表面活性剂涂层的所选择的纳米颗粒指定为表示记录信息的第二位。 表面活性剂涂覆的纳米颗粒具有第一饱和磁矩,并且去除了表面活性剂涂层的所选纳米颗粒具有第二饱和磁矩。 因此,通过从某些纳米颗粒中选择性地去除表面活性剂涂层,可以执行用于记录信息的第一和第二位的写入操作。 可以通过检测表面活性剂涂覆的纳米颗粒和非表面活性剂涂覆的纳米颗粒的不同磁矩来进行读取操作。