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    • 5. 发明申请
    • METHOD AND SYSTEM FOR MAGNETIC RECORDING USING SELF-ORGANIZED MAGNETIC NANOPARTICLES
    • 用于使用自组织磁性纳米颗粒的磁记录方法和系统
    • WO2005045809A2
    • 2005-05-19
    • PCT/US2003/032173
    • 2003-10-09
    • SEAGATE TECHNOLOGY LLC
    • VAN DE VEERDONK, Rene, J., M.WU, XiaoweiWELLER, Dieter, K.
    • G11B5/00
    • B82Y10/00G11B5/00G11B5/012G11B5/02G11B5/09G11B5/127G11B5/17G11B5/33G11B5/70605G11B5/712G11B5/74G11B5/743G11B5/82G11B5/855G11B11/002G11B11/03G11B2005/0002G11B2005/0005G11B2005/0021
    • A method and system (10) for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles (18) on a substrate (16), wherein the surfactant coated nanoparticles (18) represent first bits of recorded information. The surfactant coating (22) is then removed from selected of the surfactant coated nanoparticles (20). The selected nanoparticles (20) with their surfactant coating (22) removed may then be designated to represent second bits of recorded information. The surfactant coated nanoparticles (18) have a first saturation magnetic moment and the selected nanoparticles (20) with the surfactant coating (22) removed have a second saturation magnetic moment. Therefore, by selectively removing the surfactant coating (22) from certain nanoparticles (20), 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 (18) and the non-surfactant coated nanoparticles (20).
    • 公开了一种使用自组织磁性纳米粒子进行磁记录的方法和系统(10)。 该方法可以包括将表面活性剂涂覆的纳米颗粒(18)沉积在基底(16)上,其中表面活性剂涂覆的纳米颗粒(18)代表记录信息的第一位。 然后从选择的表面活性剂涂覆的纳米颗粒(20)中除去表面活性剂涂层(22)。 然后可以指定去除其表面活性剂涂层(22)的所选纳米颗粒(20)以表示记录信息的第二位。 涂覆有表面活性剂的纳米颗粒(18)具有第一饱和磁矩,并且除去表面活性剂涂层(22)的所选纳米颗粒(20)具有第二饱和磁矩。 因此,通过从某些纳米颗粒(20)选择性地去除表面活性剂涂层(22),可以执行用于记录第一和第二位信息的写入操作。 读取操作可以通过检测表面活性剂涂布的纳米颗粒(18)和非表面活性剂涂布的纳米颗粒(20)的不同磁矩来进行。