中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

383 records (took 0.025 seconds)

    METHOD AND APPARATUS FOR STORING DATA USING SPIN-POLARIZED ELECTRONS
    136.
    发明公开
    METHOD AND APPARATUS FOR STORING DATA USING SPIN-POLARIZED ELECTRONS 失效
    方法和装置蓄光自旋极化电子使用结束DATA

    公开(公告)号：EP0782745A1

    公开(公告)日：1997-07-09

    申请号：EP95933879.0

    申请日：1995-09-21

    Applicant: TERASTORE, INC.

    Inventor： HURT, Thomas, D. ,  HALPINE, Scott, A.

    IPC: G11B7 ,  G11B5 ,  G11B9 ,  G11B11 ,  G11B19 ,  G11B20 ,  G11B23 ,  G11C11 ,  H01J3 ,  H01J29 ,  H01J31 ,  G11B13

    CPC classification number: G11B5/65 ,  G11B5/00 ,  G11B5/64 ,  G11B5/653 ,  G11B5/656 ,  G11B9/10 ,  G11B11/11 ,  G11B11/115 ,  G11B13/045 ,  G11B19/04 ,  G11B20/1883 ,  G11B23/28 ,  G11C11/02 ,  G11C11/23 ,  H01J3/02 ,  H01J31/60 ,  H01J2203/0296 ,  H01J2237/06383

    Abstract: A data storage device including a substrate, a data storage layer on the substrate, and a spin-polarized electron source. The data storage layer comprises a fixed number of atomic layers of a magnetic material which provide the data storage layer with a magnetic anisotropy perpendicular to a surface of the data storage layer. A data magnetic field is created in the data storage layer. The data magnetic field is polarized either in a first direction corresponding to a first data value or in a second direction corresponding to a second data value. Data is stored in the data storage layer by providing a spin-polarized electron having an electron magnetic field with a direction of polarization corresponding to one of the first and the second data values, the electron having a wavelength 'characteristic' of unpaired electrons in the data storage layer which cause the magnetic moment of the material, and directing the spin-polarized electron at the data magnetic field to impart the direction of polarization of the electron magnetic field to the data magnetic field. Data is read from the data storage layer by directing the spin-polarized electron at a second wavelength at the data magnetic field and detecting a deflection or attraction of the spin-polarized electron by the data magnetic field. Alternatively, data is read from the data storage layer by directing the spin-polarized electron at the data magnetic field so that the magnetic medium produces a secondary electron and then detecting certain characteristics of the secondary electron.

    Electron gun
    138.
    发明公开
    Electron gun 失效
    电子枪。

    公开(公告)号：EP0026427A1

    公开(公告)日：1981-04-08

    申请号：EP80105690.4

    申请日：1980-09-22

    Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Machine Company Limited

    Inventor： Takigawa, Tadahiro ,  Sasaki, Isao ,  Tsuji, Kazuo

    IPC: H01J3/02

    CPC classification number: H01J1/15 ,  H01J3/02 ,  H01J37/06

    Abstract: An electron gun (1) having a cathode (11) of a lanthanum hexaboride single crystal is disclosed in which the axis of the cathode (11) is set to such a crystal orientation that the electron beam has two intensive emission regions which are asymmetrical with each other in intensity. In the electron gun ,(1), even at a low heating temperature of the cathode (11), a single spot of an image by the electron beam of a more intensive emission region since the electron beam of a weaker intensity emission region is blocked by an aperture (2).

Patent Agency Ranking