Self-pinned GMR structure by annealing
    33.
    发明授权
    Self-pinned GMR structure by annealing 失效
    通过退火自固定GMR结构

    公开(公告)号:US07320169B2

    公开(公告)日:2008-01-22

    申请号:US10846406

    申请日:2004-05-14

    IPC分类号: G11B5/31 G11B5/39 G11B5/147

    摘要: In a conventional spin valve the shunt resistance of the pinning layer reduces the overall efficiency of the device. This problem has been overcome by using IrMn for the pinning layer at a thickness of about 20 Angstroms or less. For the IrMn to be fully effective it must be subjected to a two-step anneal, first in the presence of a high field (about 10 kOe) for several hours and then in a low field (about 500 Oe) while it cools. The result, in addition to improved pinning, is the ability to do testing at the full film and full wafer levels.

    摘要翻译: 在传统的自旋阀中,钉扎层的分流电阻降低了器件的整体效率。 通过使用IrMn作为钉扎层的约20埃或更小的厚度已经克服了这个问题。 为了使IrMn完全有效,必须先进行两步退火,首先在高场(约10kOe)存在数小时,然后在低场(约500Oe)的温度下冷却。 结果,除了改进钉扎之外,还可以在整个薄膜和全晶圆级别进行测试。

    Novel way to reduce the ordering temperature for Co2MnSi-like Heusler alloys for CPP, TMR, MRAM, or other spintronics device applications
    34.
    发明申请
    Novel way to reduce the ordering temperature for Co2MnSi-like Heusler alloys for CPP, TMR, MRAM, or other spintronics device applications 有权
    降低CO2MnSi样Heusler合金对CPP,TMR,MRAM或其他自旋电子器件应用的订购温度的新方法

    公开(公告)号:US20070297103A1

    公开(公告)日:2007-12-27

    申请号:US11472126

    申请日:2006-06-21

    IPC分类号: G11B5/127

    摘要: A spin valve structure is disclosed in which an AP1 layer and/or free layer are made of a laminated Heusler alloy having Al or FeCo insertion layers. The ordering temperature of a Heusler alloy such as Co2MnSi is thereby lowered from about 350° C. to 280° C. which becomes practical for spintronics device applications. The insertion layer is 0.5 to 5 Angstroms thick and may also be Sn, Ge, Ga, Sb, or Cr. The AP1 layer or free layer can contain one or two additional FeCo layers to give a configuration represented by FeCo/[HA/IL]nHA, [HA/IL]nHA/FeCo, or FeCo/[HA/IL]nHA/FeCo where n is an integer≧1, HA is a Heusler alloy layer, and IL is an insertion layer. Optionally, a Heusler alloy insertion scheme is possible by doping Al or FeCo in the HA layer. For example, Co2MnSi may be co-sputtered with an Al or FeCo target or with a Co2MnAl or Co2FeSi target.

    摘要翻译: 公开了一种自旋阀结构,其中AP1层和/或自由层由具有Al或FeCo插入层的层状Heusler合金制成。 因此,Heusler合金(例如Co 2 MnSi)的排序温度从约350℃降低到280℃,这对于自旋电子器件应用是实用的。 插入层的厚度为0.5〜5埃,也可以是Sn,Ge,Ga,Sb或Cr。 AP1层或自由层可以含有一个或两个附加的FeCo层,以得到由FeCo / [HA / IL] N HA表示的构型,[HA / IL] N < HA / FeCo或FeCo / [HA / IL] N / HACo,其中n为整数> = 1,HA为Heusler合金层,IL为插入层。 任选地,通过在HA层中掺杂Al或FeCo,Heusler合金插入方案是可能的。 例如,Co 2 MnSi可以与Al或FeCo靶或与Co 2 N 2 MnAl或Co 2 FeSi靶共溅射。

    Magnetoresistive spin valve sensor with tri-layer free layer
    35.
    发明申请
    Magnetoresistive spin valve sensor with tri-layer free layer 有权
    具有三层自由层的磁阻自旋阀传感器

    公开(公告)号:US20070047159A1

    公开(公告)日:2007-03-01

    申请号:US11209231

    申请日:2005-08-23

    IPC分类号: G11B5/33 G11B5/127

    摘要: A TMR sensor, a CPP GMR sensor and a CCP CPP GMR sensor all include a tri-layered free layer that is of the form CoFe/CoFeB/NiFe, where the atom percentage of Fe can vary between 5% and 90% and the atom percentage of B can vary between 5% and 30%. The sensors also include SyAP pinned layers which, in the case of the GMR sensors include at least one layer of CoFe laminated onto a thin layer of Cu. In the CCP CPP sensor, a layer of oxidized aluminum containing segregated particles of copper is formed between the spacer layer and the free layer. All three configurations exhibit extremely good values of coercivity, areal resistance, GMR ratio and magnetostriction.

    摘要翻译: TMR传感器,CPP GMR传感器和CCP CPP GMR传感器都包括三层自由层,其形式为CoFe / CoFeB / NiFe,其中Fe的原子百分比可以在5%和90%之间变化,原子 B的百分比可以在5%和30%之间变化。 这些传感器还包括SyAP钉扎层,其在GMR传感器的情况下包括层压在Cu薄层上的至少一层CoFe。 在CCPCPP传感器中,在间隔层和自由层之间形成一层含氧化铝的偏析铜颗粒。 所有这三种结构表现出非常好的矫顽力,面电阻,GMR比和磁致伸缩的值。

    Double layer spacer for antiparallel pinned layer in CIP/CPP GMR and MTJ devices
    37.
    发明授权
    Double layer spacer for antiparallel pinned layer in CIP/CPP GMR and MTJ devices 失效
    在CIP / CPP GMR和MTJ器件中用于反平行钉扎层的双层间隔物

    公开(公告)号:US06870711B1

    公开(公告)日:2005-03-22

    申请号:US10863406

    申请日:2004-06-08

    IPC分类号: G11B5/39 G11B5/127

    CPC分类号: G11B5/39 Y10T29/49044

    摘要: A pinned/pinning layer configuration of the form: AP1/coupling bilayer/AP2/AFM, suitable for use in a CIP or CPP GMR sensor, a TMR sensor or an MRAM element, is found to have improved magnetic stability, yield good values of dR/R and have high values of saturation magnetization that can be adjusted to meet the requirements of magnetic field annealing. The coupling bilayer is a layer of Ru/Rh or their alloys, which provides a wide range of coupling strengths by varying either the thickness of the Ru layer or the Rh layer.

    摘要翻译: 发现适用于CIP或CPP GMR传感器,TMR传感器或MRAM元件的AP1 /耦合双层/ AP2 / AFM的钉扎/钉扎层配置具有改善的磁稳定性,产生良好的值 dR / R,并且具有高的饱和磁化值,可以调节以满足磁场退火的要求。 耦合双层是Ru / Rh或其合金层,其通过改变Ru层或Rh层的厚度来提供宽范围的耦合强度。

    Control of enterohemorrhagic E. coli 0157:H7 in cattle by probiotic
bacteria and specific strains of E. coli
    38.
    发明授权
    Control of enterohemorrhagic E. coli 0157:H7 in cattle by probiotic bacteria and specific strains of E. coli 失效
    通过益生菌和大肠杆菌的特异性菌株控制牛中肠出血性大肠杆菌0157:H7

    公开(公告)号:US5965128A

    公开(公告)日:1999-10-12

    申请号:US910850

    申请日:1997-08-13

    摘要: The prevention and treatment of carriage of E. coli O157:H7 by a ruminant animal is accomplished by administering dominant probiotic bacteria to the animal. The dominant probiotic bacteria prevent the establishment of E. coli O157:H7 when inoculated prior to administering E. coli O157:H7, are reisolatable from the gastrointestinal tract of inoculated animals for up to 28 days post-inoculation, and are capable of reducing or eliminating E. coli O157:H7 from animals previously inoculated with the pathogen. In particular, the dominant probiotic bacteria are strains E. coli 271 ATCC 202020, E. coli 786 ATCC 202018 and E. coli 797 ATCC 202019.

    摘要翻译: 反刍动物预防和处理大肠杆菌O157:H7的运输通过向动物施用显性益生菌来实现。 主要的益生菌预防在大肠杆菌O157:H7之前接种时大肠杆菌O157:H7的建立,可从接种动物的胃肠道重新分离,接种后最多28天,并能够还原或 从事先接种病原体的动物中消除大肠杆菌O157:H7。 特别地,主要的益生菌是大肠杆菌271 ATCC 202020,大肠杆菌786 ATCC 202018和大肠杆菌797 ATCC 202019。

    Control systems and methods for controlling a dry feed system to convey a solid fuel
    40.
    发明授权
    Control systems and methods for controlling a dry feed system to convey a solid fuel 有权
    用于控制干式进料系统以输送固体燃料的控制系统和方法

    公开(公告)号:US09122280B2

    公开(公告)日:2015-09-01

    申请号:US13112386

    申请日:2011-05-20

    摘要: A control system for controlling a dry feed system to convey a solid fuel includes multiple sensors, a pressurizing gas controller, at least one assistant gas controller and multiple gas valves. The sensors generate multiple measurement signals signifying characteristics of the dry feed system. The pressuring gas controller calculates a feed tank pressure bias or/and a pressuring gas flow bias based on a solid flow rate and generates a first control signal based on the pressure bias or/and the pressurizing gas flow bias. The assistant gas controller calculates an assistant gas bias based on a solid loading ratio and generates a second control signal based on the assistant gas bias. The gas valves are driven by the first or/and second control signals to regulate the solid fuel. A control method is also described.

    摘要翻译: 用于控制干式进料系统以输送固体燃料的控制系统包括多个传感器,加压气体控制器,至少一个辅助气体控制器和多个气体阀。 传感器产生表示干式进料系统特性的多个测量信号。 加压气体控制器基于固体流量计算进料罐压力偏压和/和加压气体流量偏压,并且基于压力偏压或/和加压气体流动偏压产生第一控制信号。 辅助气体控制器基于固体负载比计算辅助气体偏压,并且基于辅助气体偏压产生第二控制信号。 气阀由第一或/和第二控制信号驱动以调节固体燃料。 还描述了控制方法。