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    • 2. 发明申请
    • SPIN LOGIC BASED ON PERSISTENT SPIN HELICES
    • 基于独立旋转螺旋的旋转逻辑
    • WO2013175326A1
    • 2013-11-28
    • PCT/IB2013/053382
    • 2013-04-29
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM (CHINA) INVESTMENT COMPANY LTD.IBM RESEARCH GMBH
    • FUHRER, AndreasSALIS, Gian R.
    • H01L21/02
    • G11C11/1673G11C11/1675H01L29/66984H03K19/23Y10S977/933Y10S977/935
    • The present invention is notably directed to spin logic devices (100) and related methods. The devices (100) comprise: an electron confinement layer (8, 87, 89) confining an electron gas or 2DEG in a two- dimensional area subtended by a direction x and a direction y , the latter perpendicular to the former, the spin logic device configured for the 2DEG to support a persistent spin helix or PSH formed therein with a given spin component oscillating with periodicity λ along direction x but not oscillating along direction y ; and a majority logic circuit (14), said circuit comprising: one or more input devices (1, 1a, 1b, 1c, 1c1, 1c2, 1d), energizable to create respective local spin-polarizations (3) of the 2DEG in respective first regions (10) of the confinement layer, such as to form respective PSHs; and an output device (4), configured to detect, in a second region (40) of the confinement layer, an average spin-polarization (6) of the 2DEG resulting from one or more local spin-polarizations (3) created by the one or more input devices and diffused through one or more resulting PSHs, respectively, wherein a projection of a distance ( d ) between the second region (40) and any one of the first regions (1) onto said direction x is equal to n λ/ a , n integer, a equal to 2 or 4.
    • 本发明特别涉及自旋逻辑器件(100)和相关方法。 装置(100)包括:电子限制层(8,87,89),其限制在由方向x和方向y对向的二维区域中的电子气体或2DEG,后者垂直于前者,自旋逻辑 配置用于2DEG的装置支持其中形成的持续自旋螺旋或PSH,其中给定的旋转分量以沿方向x的周期性λ振荡但不沿着y方向振荡; 和多数逻辑电路(14),所述电路包括:一个或多个输入装置(1,1a,1b,1c,1c1,1c2,1d),其能够激励以分别在所述2DEG中产生相应的局部自旋极化(3) 限制层的第一区域(10),以形成相应的PSH; 以及输出装置(4),被配置为在限制层的第二区域(40)中检测由一个或多个局部自旋极化(3)产生的2DEG的平均自旋极化(6) 一个或多个输入设备,并分别通过一个或多个所产生的PSH扩散,其中第二区域(40)和第一区域(1)中的任何一个之间的距离(d)的投影在所述方向x上等于n λ/ a,n整数,等于2或4。
    • 4. 发明申请
    • SPIN INJECTION DEVICE HAVING SEMICONDCUTOR-FERROMAGNETIC-SEMICONDUCTOR STRUCTURE AND SPIN TRANSISTOR
    • 具有半导体 - 铁磁 - 半导体结构和自旋晶体管的自旋注入器件
    • WO2008005856A3
    • 2008-06-19
    • PCT/US2007072521
    • 2007-06-29
    • UNIV CALIFORNIAXIE YA-HONG
    • XIE YA-HONG
    • H01L29/12
    • H01L29/66984Y10S977/935
    • A spin injection device and spin transistor including a spin injection device. A spin injection device includes different semiconductor materials and a spin-polarizing ferromagnetic material there between. The semiconductor materials may have different crystalline structures, e.g., a first material can be polycrystalline or amorphous silicon, and a second material can be single crystalline silicon. Charge carriers are spin-polarized when the traverse the spin-polarizing ferromagnetic material and injected into the second semiconductor material. A Schottky barrier height between the first semiconductor and ferromagnetic materials is larger than a second Schottky barrier height between the ferromagnetic and second semiconductor materials. A spin injection device may be a source of a spin field effect transistor.
    • 自旋注入装置和自旋晶体管包括自旋注入装置。 自旋注入装置包括不同的半导体材料和位于其间的自旋极化铁磁材料。 半导体材料可具有不同的晶体结构,例如,第一材料可以是多晶硅或非晶硅,第二材料可以是单晶硅。 当横穿自旋极化铁磁材料并注入第二半导体材料时,电荷载流子自旋极化。 第一半导体和铁磁材料之间的肖特基势垒高度大于铁磁半导体材料和第二半导体材料之间的第二肖特基势垒高度。 自旋注入器件可以是自旋场效应晶体管的源极。
    • 9. 发明申请
    • SPIN INJECTION DEVICE HAVING SEMICONDCUTOR-FERROMAGNETIC-SEMICONDUCTOR STRUCTURE AND SPIN TRANSISTOR
    • 具有半导体 - 反射 - 半导体结构和旋转晶体管的旋转注入装置
    • WO2008005856A2
    • 2008-01-10
    • PCT/US2007/072521
    • 2007-06-29
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIAXIE, Ya-Hong
    • XIE, Ya-Hong
    • H01L29/40
    • H01L29/66984Y10S977/935
    • A spin injection device and spin transistor including a spin injection device. A spin injection device includes different semiconductor materials and a spin-polarizing ferromagnetic material there between. The semiconductor materials may have different crystalline structures, e.g., a first material can be polycrystalline or amorphous silicon, and a second material can be single crystalline silicon. Charge carriers are spin-polarized when the traverse the spin-polarizing ferromagnetic material and injected into the second semiconductor material. A Schottky barrier height between the first semiconductor and ferromagnetic materials is larger than a second Schottky barrier height between the ferromagnetic and second semiconductor materials. A spin injection device may be a source of a spin field effect transistor.
    • 一种自旋注入装置和包括自旋注入装置的自旋晶体管。 自旋注入装置包括不同的半导体材料和其间的自旋极化铁磁材料。 半导体材料可以具有不同的结晶结构,例如,第一材料可以是多晶或非晶硅,第二材料可以是单晶硅。 当穿过自旋极化铁磁材料并注入到第二半导体材料中时,电荷载体是自旋极化的。 第一半导体和铁磁材料之间的肖特基势垒高度大于铁磁和第二半导体材料之间的第二肖特基势垒高度。 自旋注入装置可以是自旋场效应晶体管的源。
    • 10. 发明申请
    • MAGNETIC MEMORY DEVICE AND METHOD OF MAGNETIZATION REVERSAL OF THE MAGNETIZATION OF AT LEAST ONE MAGNETIC MEMORY ELEMENT
    • 磁记忆体装置及其磁性方法,用于最小磁化记忆元件的磁化反转
    • WO2006074810A1
    • 2006-07-20
    • PCT/EP2005/014108
    • 2005-12-29
    • BUNDESREPUBLIK DEUTSCHLAND,VERTRETEN DURCH DAS BUNDESMINISTERIUM FÜR WIRTSCHAFT UND TECHNOLGIE,DIESES VERTRETEN DURCH DEN PRÄSIDENTEN DER PHYSIKALISCH-TECHNISCHEN BUNDESANSTALT BRAUNSCHWEIG UND BERLINSCHUMACHER, Hans, Werner
    • SCHUMACHER, Hans, Werner
    • G11C11/16
    • G11C11/16Y10S977/935
    • Method of magnetization reversal of the magnetization (M) of at least one first magnetic memory element of an array of magnetic memory elements comprising the steps of: applying a first magnetic field pulse to a first set of magnetic memory ele-ments, and applying a second magnetic field pulse to a second set of magnetic memory elements, such that during the application of the first and second magnetic field pulse the magnetization (M) of said first magnetic memory element which is to be re-versed upon the field pulse decay performs approximately an odd number of a half precessional turns, wherein the magnetization (M) of at least one second magnetic memory element which is not to be reversed upon the field pulse de-cay performs approximately a number of full precessional turns. The underlying concept of the invention is to improve the bit addressing in an array of magnetic memory cells by reducing the ringing of the magnetization of the free layer of the magnetic cells which are not selected for reversal but which are nevertheless subject to the application of a magnetic field pulse. This can be achieved by applying a field pulse to these cells which induces approximately a full precessional turn of the magnetization of the free layer of the cells. After the full precessional turn the magnetization is oriented very near the initial orientation along the easy axis of magnetization and the magnetic ringing after application of the half select field pulse is reduced.
    • 磁存储元件阵列的至少一个第一磁存储元件的磁化(M)的磁化反转方法包括以下步骤:将第一磁场脉冲施加到第一组磁存储元件,并施加 第二磁场脉冲到第二组磁存储器元件,使得在施加第一和第二磁场脉冲期间,将要对场脉冲衰减进行修正的所述第一磁存储元件的磁化(M)执行 近似奇数的半旋转匝数,其中至少一个第二磁存储元件的磁场(M)在场脉冲去除之后不被反转,执行大约一定数量的全进位匝数。 本发明的基本概念是通过减少不被选择用于反转的磁性单元的自由层的磁化的振荡来改善磁存储单元的阵列中的位寻址,但仍然需要应用 磁场脉冲。 这可以通过对这些单元施加场脉冲来实现,这些单元引起单元自由层的磁化的大致完全转动。 在完全进动转弯之后,磁化方向非常接近沿易磁化轴的初始取向,并且在施加半选择场脉冲之后磁振响应减小。