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    • 9. 发明授权
    • Magnetoelectric device
    • 磁电装置
    • US06833980B1
    • 2004-12-21
    • US09504623
    • 2000-02-15
    • Kazuhito TsukagoshiBruce William AlphenaarHiroshi Mizuta
    • Kazuhito TsukagoshiBruce William AlphenaarHiroshi Mizuta
    • G11B533
    • H01L43/08B82Y10/00B82Y25/00G01R33/09G11B5/332G11B5/37G11B5/3903G11B5/3909G11B2005/3996G11C13/025
    • A magnetoelectric device responsive to an applied magnetic field, e.g. for use as a reading head for data stored in magnetic storage media, comprises first and second ferromagnetic regions (3, 4) with a channel region (5) between them, the ferromagnetic regions being configured so that charge carriers with a particular spin polarization which can pass through the first region, pass through the second region as a function of the relative orientations of magnetization of the ferromagnetic regions produced by the applied magnetic field such that the device exhibits a conductivity as a function of the strength of the applied field. The channel region (5) includes a nanotube (6) which may be formed of carbon, configured to provide a quasi-one-dimensional channel to cause charge carriers which pass through the first ferromagnetic region to maintain their spin polarization as they pass towards the second ferromagnetic region. In an alternative embodiment a deposited carbon layer (14) is used in the channel region.
    • 响应于所施加的磁场的磁电装置,例如, 用作用于存储在磁存储介质中的数据的读取头,包括在它们之间具有通道区域(5)的第一和第二铁磁区域(3,4),所述铁磁区域被配置为使得具有特定自旋极化的电荷载流子 可以通过第一区域,作为由施加的磁场产生的铁磁区域的磁化的相对取向的函数,穿过第二区域,使得该器件显示作为施加场强度的函数的导电率。 通道区域(5)包括可以由碳形成的纳米管(6),其构造成提供准一维通道,以引起通过第一铁磁区域的电荷载流子,以保持其自旋极化 第二铁磁区。 在替代实施例中,在沟道区域中使用沉积碳层(14)。