Method and apparatus for storing data using spin-polarized electrons
    171.
    发明授权
    Method and apparatus for storing data using spin-polarized electrons 有权
    使用自旋极化电子存储数据的方法和装置

    公开(公告)号:US06304481B1

    公开(公告)日:2001-10-16

    申请号:US09612221

    申请日:2000-07-07

    Applicant: Thomas D. Hurt

    Inventor: Thomas D. Hurt

    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.

    Abstract translation: 一种数据存储装置,包括基板,基板上的数据存储层和自旋极化电子源。 数据存储层包括固定数量的磁性材料的原子层,为数据存储层提供垂直于数据存储层表面的磁各向异性。 在数据存储层中创建数据磁场。 数据磁场在对应于第一数据值的第一方向或对应于第二数据值的第二方向上被极化。 通过提供具有电子磁场的自旋极化电子,数据存储在数据存储层中,该电子磁场具有与第一和第二数据值中的一个数据值相对应的极化方向,电子具有不成对电子的波长“特性” 数据存储层,其引起材料的磁矩,并将自旋极化电子引导到数据磁场,以将电子磁场的极化方向赋予数据磁场。 通过在数据磁场处引导第二波长的自旋极化电子并通过数据磁场检测自旋极化电子的偏转或吸引,从数据存储层读取数据。 或者,通过将自旋极化电子指向数据磁场,从数据存储层读取数据,使得磁介质产生二次电子,然后检测二次电子的某些特性。

    Pulsed electron beam source and its use
    172.
    发明授权
    Pulsed electron beam source and its use 失效
    脉冲电子束源及其应用

    公开(公告)号:US6049162A

    公开(公告)日:2000-04-11

    申请号:US70028

    申请日:1998-04-30

    CPC classification number: H01J3/02 H01J37/06 H01J2237/06375 H01J2237/316

    Abstract: In a pulsed electron beam source based on the vacuum principle, comprising a vacuum diode having a multi-point emission cathode with a flange and a plurality of emission points, a control grid, a pulse generator, a magnetic compression unit consisting of field coils, a drift chamber, a target chamber and a synchronization unit, the multipoint emission cathode is embedded in a shield electrode, and the shield electrode is connected to the cathode base by way of a resistor which is so sized that the shield electrode is capable of freely floating.

    Abstract translation: 在基于真空原理的脉冲电子束源中,包括具有法兰和多个发射点的多点发射阴极的真空二极管,控制栅格,脉冲发生器,由场线圈组成的磁压缩单元, 漂移室,目标室和同步单元,多点发射阴极嵌入屏蔽电极中,屏蔽电极通过电阻器连接到阴极基座,电阻器的尺寸使得屏蔽电极能够自由地 浮动

    Magnetic matrix display device using orthogonal conductors
    174.
    发明授权
    Magnetic matrix display device using orthogonal conductors 失效
    使用正交导体的磁矩阵显示装置

    公开(公告)号:US5929828A

    公开(公告)日:1999-07-27

    申请号:US695857

    申请日:1996-08-09

    Abstract: A display system comprises a display screen including a matrix of display elements and a permanent magnet having an array of channels formed therein. Each channel corresponds to a different display element. Each display element comprises a phosphor target, an electron source and a device for controlling flow of electrons from the source through the corresponding channel in the magnet onto the target. Addressing device comprises first and second orthogonal conductors defining a grid. Each display element is located at the intersection of a different pair of first and second conductors. Each first conductor is connected to a first control electrode of the control device of each display element in a corresponding line of display elements and each second conductor is connected to a second control electrode of the control device of each display element in a corresponding line of display elements.

    Abstract translation: 显示系统包括包括显示元件的矩阵的显示屏和具有形成在其中的通道阵列的永磁体。 每个通道对应于不同的显示元件。 每个显示元件包括荧光体靶,电子源和用于控制电子从源通过磁体中的相应通道到目标上的流动的装置。 寻址装置包括限定网格的第一和第二正交导体。 每个显示元件位于不同对的第一和第二导体的交叉处。 每个第一导体连接到显示元件的相应行中的每个显示元件的控制装置的第一控制电极,并且每个第二导体在相应的显示器线路中连接到每个显示元件的控制装置的第二控制电极 元素。

    Magnetically energized pulser
    176.
    发明授权
    Magnetically energized pulser 失效
    磁力脉冲发生器

    公开(公告)号:US4912738A

    公开(公告)日:1990-03-27

    申请号:US153814

    申请日:1988-02-08

    Inventor: Peter J. Turchi

    CPC classification number: H01J3/02 H03K17/74 H03K17/80 H03K3/53

    Abstract: A diode pulser is described which comprises a diode and an inductor connected in series, the impedance of the diode being controllable to suddenly increase the impedance to produce a high voltage pulse across the diode. The diode includes concentric electrodes forming a gap between them across which electrons move. To increase the impedance, a magnetic field is suddenly applied parallel to the electrode surfaces, to bend the electron paths so as to require a much higher voltage to move the electrons across the gap, the inductor creating such voltage to maintain the current flow for a brief time. The diode pulser is useful as a rapid-acting switch, and as a source of high energy electrons that are useful to generate X-rays, microwaves, and for other purposes.

    Abstract translation: 描述了二极管脉冲发生器,其包括串联连接的二极管和电感器,二极管的阻抗可控制以突然增加阻抗以在二极管上产生高电压脉冲。 二极管包括在它们之间形成电子移动的间隙的同心电极。 为了增加阻抗,磁场突然平行于电极表面施加,以弯曲电子路径,以便要求更高的电压以使电子移动穿过间隙,电感器产生这样的电压,以保持电流流过 短暂的时间。 二极管脉冲发生器可用作快速开关,也可用作产生X射线,微波和其它目的的高能电子源。

    Modulatable, hollow beam electron gun
    177.
    发明授权
    Modulatable, hollow beam electron gun 失效
    可调节空心束电子枪

    公开(公告)号:US4091311A

    公开(公告)日:1978-05-23

    申请号:US751561

    申请日:1976-12-17

    CPC classification number: H01J3/02 H01J29/04 H01J29/488

    Abstract: A modulatable, hollow beam electron gun assembly includes an electron-optical (E-O) column having a fixed diameter ring, dispenser type cathode assembly for providing a hollow electron beam through thermionic emission from a hollow cylindrical cathode element, first and second control grid assemblies, a first anode assembly and a second anode assembly, which in combination with a beam modulator assembly comprises an electrostatic coaxial lens assembly. The grid and anode assemblies provide control of the emitted beam current density. The beam modulator assembly includes an axial electrode positioned along the longitudinal axis of the second anode assembly and first and second hollow, anode modulator rings disposed within the second anode and circumscribing a different portion of the axial electrode, each modulator ring responsive to modulation signals presented to each at a substantially complementary magnitude and polarity to provide a hollow electron beam having an average diameter provided by an instantaneous outer diameter and inner diameter value, the ratio of which defines an aspect ratio of the beam.

    Abstract translation: 可调节的中空束电子枪组件包括具有固定直径环的电子 - 光学(EO)柱,分配器型阴极组件,用于通过来自中空圆柱形阴极元件的热电子发射提供中空电子束,第一和第二控制栅组件, 第一阳极组件和第二阳极组件,其与光束调制器组件组合包括静电同轴透镜组件。 栅极和阳极组件提供对发射的束电流密度的控制。 光束调制器组件包括沿着第二阳极组件的纵向轴线定位的轴向电极,以及设置在第二阳极内并包围轴向电极的不同部分的第一和第二空心阳极调制器环,每个调制器环响应于所呈现的调制信号 以基本上互补的大小和极性来提供具有由瞬时外径和内径值提供的平均直径的中空电子束,其中该电子束的比率限定了该束的纵横比。

    Electron beam apparatus comprising a point cathode
    178.
    发明授权
    Electron beam apparatus comprising a point cathode 失效
    包含点状阴极的电子束装置

    公开(公告)号:US3864572A

    公开(公告)日:1975-02-04

    申请号:US40284473

    申请日:1973-10-02

    Applicant: PHILIPS CORP

    CPC classification number: H01J37/075 H01J3/02 H01J3/024 H01J2237/06316

    Abstract: The electron source of an electron beam apparatus comprises a cathode wire which is to be heated by a laser beam and which is to be displaced in the wire direction. This cathode wire has a thickness of from 10 to 30 microns. By applying a field strength of 105 to 106 KV/m to the heated wire tip and by controlling the laser intensity and the wire feed during operation by a signal derived from the emission of the wire tip, a tip is produced on the wire end having a curvature radius of approximately 1 micron. At a temperature just below the melting temperature of the wire a stable temperature field emission having a current density of up to better than 104 A/cm2 is thus realized.

    Abstract translation: 电子束装置的电子源包括由激光束加热并在线方向移位的阴极线。 该阴极线的厚度为10至30微米。 通过向加热的线尖施加105至106KV / m的场强,并且通过由电极尖端的发射导出的信号控制操作期间的激光强度和送丝,在具有 大约1微米的曲率半径。 在刚好低于电线熔化温度的温度下,实现了电流密度高达104A / cm2的稳定的温度场发射。

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