Magnetoresistive element, magnetic head and magnetic recording/reproducing apparatus
    61.
    发明申请
    Magnetoresistive element, magnetic head and magnetic recording/reproducing apparatus 有权
    磁阻元件,磁头和磁记录/重放装置

    公开(公告)号:US20050057862A1

    公开(公告)日:2005-03-17

    申请号:US10895844

    申请日:2004-07-22

    摘要: A magnetoresistive element has a first magnetic layer and a second magnetic layer separate from each other, the first magnetic layer and the second magnetic layer each having a magnetization whose direction is substantially pinned, and a non-magnetic conductive layer formed in contact with the first magnetic layer and the second magnetic layer and electrically connecting the first and second magnetic layers, the non-magnetic conductive layer forming a path of spin-polarized electrons from one of the magnetic layer to the other magnetic layer, the non-magnetic conductive layer comprising a portion located between the first magnetic layer and the second magnetic layer, the portion being a sensing area.

    摘要翻译: 磁阻元件具有彼此分离的第一磁性层和第二磁性层,第一磁性层和第二磁性层各自具有方向基本上被钉扎的磁化,以及形成为与第一磁性层接触的非磁性导电层 磁性层和第二磁性层,并且电连接第一和第二磁性层,非磁性导电层形成自旋极化电子的路径从一个磁性层到另一个磁性层,非磁性导电层包括 位于第一磁性层和第二磁性层之间的部分,该部分是感测区域。

    Magnetoresistance effect element having improved biasing films, and
magnetic head and magnetic recording device using the same
    62.
    发明授权
    Magnetoresistance effect element having improved biasing films, and magnetic head and magnetic recording device using the same 失效
    具有改进的偏置膜的磁阻效应元件以及使用其的磁头和磁记录装置

    公开(公告)号:US6111722A

    公开(公告)日:2000-08-29

    申请号:US71040

    申请日:1998-05-04

    摘要: A spin valve GMR element comprises a pair of magnetic biasing films disposed with a predetermined gap and a spin valve GMR film disposed in such a manner that at least both edge portions thereof are stacked on the pair of magnetic biasing films. The spin valve GMR film has a free layer containing a magnetic layer large in its saturation magnetization such as a Co containing magnetic layer. The magnetic biasing film has a laminate film composed of a high saturation magnetization magnetic layer and a magnetic hard layer. The high saturation magnetization layer, for a saturation magnetization Ms.sup.free of a free layer and a saturation magnetization of Ms.sup.hard of a magnetic hard layer, has a saturation magnetization Ms.sup.high satisfying at least one of Ms.sup.high .gtoreq.Ms.sup.free and Ms.sup.high .gtoreq.Ms.sup.hard. According to such a bias structure, when a spin valve GMR element of an over laid structure is narrowed in its track, Barkhausen noise can be effectively suppressed from occurring.

    摘要翻译: 自旋阀GMR元件包括以预定间隙设置的一对磁偏置膜和以至少两个边缘部分堆叠在一对磁偏置膜上的方式设置的自旋阀GMR膜。 自旋阀GMR膜具有包含其饱和磁化强度大的含有Co的磁性层的磁性层的自由层。 磁偏置膜具有由高饱和磁化磁化层和磁性硬质层构成的层叠膜。 高饱和磁化层,对于磁性硬层的自由层的饱和磁化强度Msfree和Mshard的饱和磁化强度,具有满足Mshigh> / = Msfree和Mshigh> / = Mshard中的至少一个的饱和磁化强度Mshigh。 根据这种偏压结构,当过度铺设结构的自旋阀GMR元件在其轨道上变窄时,可以有效地抑制巴克豪森噪声的发生。

    Magnetoresistive effect element, magnetic head and magnetic recording/reproducing apparatus
    64.
    发明授权
    Magnetoresistive effect element, magnetic head and magnetic recording/reproducing apparatus 有权
    磁阻效应元件,磁头和磁记录/重放装置

    公开(公告)号:US07808747B2

    公开(公告)日:2010-10-05

    申请号:US11702582

    申请日:2007-02-06

    IPC分类号: G11B5/39

    摘要: A magnetoresistive effect element includes a fixed magnetization layer; a free magnetization layer; a nonmagnetic spacer layer between the fixed magnetization layer and the free magnetization layer; and an insertion layer disposed on an opposite side of the free magnetization layer from the nonmagnetic spacer layer, wherein the first insulating layer has an oxide, a nitride, or an oxynitride including at least one kind of element selected from a group constituted of Al (aluminum), Si (silicon), Mg (magnesium), Ta (tantalum) and Zn (zinc) as a major constituent, and the insertion layer has an oxide, a nitride, or an oxynitride including at least one kind of element selected from a group constituted of Al (aluminum), Si (silicon), Mg (magnesium), Ta (tantalum) and Zn (zinc) as a major constituent.

    摘要翻译: 磁阻效应元件包括固定磁化层; 自由磁化层; 在固定磁化层和自由磁化层之间的非磁性间隔层; 以及插入层,其设置在所述自由磁化层与所述非磁性间隔层的相对侧上,其中,所述第一绝缘层具有氧化物,氮化物或氮氧化物,所述氧化物,氮化物或氮氧化物包含选自由Al组成的组中的至少一种元素 铝),Si(硅),Mg(镁),Ta(钽)和Zn(锌)作为主要成分,并且所述插入层具有氧化物,氮化物或氧氮化物,其包含至少一种选自 以Al(铝),Si(硅),Mg(镁),Ta(钽)和Zn(锌)为主要成分的基团。

    Method for manufacturing magnetoresistive element
    65.
    发明授权
    Method for manufacturing magnetoresistive element 有权
    制造磁阻元件的方法

    公开(公告)号:US07785662B2

    公开(公告)日:2010-08-31

    申请号:US11583968

    申请日:2006-10-20

    IPC分类号: H05H1/00 H01F41/00 H01F41/22

    摘要: There is provided a method for manufacturing a magnetoresistive element having a magnetization pinned layer, a magnetization free layer, and a spacer layer including an insulating layer arranged between the magnetization pinned layer and the magnetization free layer and current paths passing through the insulating layer. The method includes, in producing the spacer layer, depositing a first non-magnetic metal layer forming the current paths, depositing a second metal layer to be converted into the insulating layer on the first non-magnetic metal layer, and performing two stages of oxidation treatments in which a partial pressure of an oxidizing gas in a first oxidation treatment is set to 1/10 or less of a partial pressure of an oxidizing gas in a second oxidation treatment, and the second metal layer being irradiated with an ion beam or a RF plasma of a rare gas in the first oxidation treatment.

    摘要翻译: 提供了一种用于制造具有磁化钉扎层,磁化自由层和包括布置在磁化钉扎层和磁化自由层之间的绝缘层和穿过绝缘层的电流路径的间隔层的磁阻元件的方法。 该方法包括在制造间隔层时,沉积形成电流路径的第一非磁性金属层,在第一非磁性金属层上沉积待转换成绝缘层的第二金属层,并进行两个阶段的氧化 将第一氧化处理中的氧化气体的分压设定为第二氧化处理中的氧化气体的分压的1/10以下的处理,将第二金属层照射离子束或 RF等离子体中的稀有气体进行第一次氧化处理。

    Magnetoresistive element, magnetic head, magnetic recording apparatus, and magnetic memory
    66.
    发明授权
    Magnetoresistive element, magnetic head, magnetic recording apparatus, and magnetic memory 失效
    磁阻元件,磁头,磁记录装置和磁存储器

    公开(公告)号:US07742262B2

    公开(公告)日:2010-06-22

    申请号:US11848374

    申请日:2007-08-31

    IPC分类号: G11B5/39 H01L29/76

    摘要: A magnetoresistive element includes a first magnetic layer a magnetization direction of which is substantially pinned, a second magnetic layer a magnetization direction of which varies depending on an external field, a magnetic spacer layer provided between the first magnetic layer and the second magnetic layer, and electrodes which supply a current perpendicularly to a plane of a stacked film including the first magnetic layer, the magnetic spacer layer and the second magnetic layer. In this element, the magnetization directions of the first and the second magnetic layers are substantially orthogonal at zero external field.

    摘要翻译: 磁阻元件包括其磁化方向基本上被钉扎的第一磁性层,其磁化方向根据外部场变化的第二磁性层,设置在第一磁性层和第二磁性层之间的磁性间隔层,以及 电极,其垂直于包括第一磁性层,磁性间隔层和第二磁性层的层叠膜的平面提供电流。 在该元件中,第一和第二磁性层的磁化方向在零外场大致正交。

    Magnetoresistive element, magnetic head and magnetic recording/reproducing apparatus
    68.
    发明申请
    Magnetoresistive element, magnetic head and magnetic recording/reproducing apparatus 有权
    磁阻元件,磁头和磁记录/重放装置

    公开(公告)号:US20090097166A1

    公开(公告)日:2009-04-16

    申请号:US12314232

    申请日:2008-12-05

    IPC分类号: G11B5/33

    摘要: A magnetoresistive element has a first magnetic layer and a second magnetic layer separate from each other, the first magnetic layer and the second magnetic layer each having a magnetization whose direction is substantially pinned, and a non-magnetic conductive layer formed in contact with the first magnetic layer and the second magnetic layer and electrically connecting the first and second magnetic layers, the non-magnetic conductive layer forming a path of spin-polarized electrons from one of the magnetic layer to the other magnetic layer, the non-magnetic conductive layer comprising a portion located between the first magnetic layer and the second magnetic layer, the portion being a sensing area.

    摘要翻译: 磁阻元件具有彼此分离的第一磁性层和第二磁性层,第一磁性层和第二磁性层各自具有方向基本上被钉扎的磁化,以及形成为与第一磁性层接触的非磁性导电层 磁性层和第二磁性层,并且电连接第一和第二磁性层,非磁性导电层形成自旋极化电子的路径从一个磁性层到另一个磁性层,非磁性导电层包括 位于第一磁性层和第二磁性层之间的部分,该部分是感测区域。

    Magnetoresistive effect element, magnetic head, and magnetic reproducing apparatus
    69.
    发明授权
    Magnetoresistive effect element, magnetic head, and magnetic reproducing apparatus 有权
    磁阻效应元件,磁头和磁再现装置

    公开(公告)号:US07495870B2

    公开(公告)日:2009-02-24

    申请号:US10954545

    申请日:2004-10-01

    IPC分类号: G11B5/33

    摘要: A magnetoresistive effect element includes a magnetization pinned layer, a magnetization free layer; a nonmagnetic metal layer disposed between the magnetization pinned layer and the magnetization free layer, a resistance increasing layer, a spin filter layer, and a pair of electrodes. The resistance increasing layer includes a insulation portion and is disposed in at least one of the magnetization pinned layer, the magnetization free layer, and the nonmagnetic metal layer. The spin filter layer is disposed to be adjacent to the magnetization free layer and has a thickness in a range of 5 nm to 20 nm. The magnetization free layer is disposed between the spin filter layer and the nonmagnetic metal layer. The magnetization pinned layer, the magnetization free layer, the nonmagnetic layer, the resistance increasing layer, and the spin filter layer are disposed between the electrodes.

    摘要翻译: 磁阻效应元件包括磁化钉扎层,无磁化层; 设置在磁化被钉扎层和无磁化层之间的非磁性金属层,电阻增加层,自旋滤波器层和一对电极。 电阻增加层包括绝缘部分,并且设置在磁化钉扎层,磁化自由层和非磁性金属层中的至少一个中。 自旋过滤层被设置为与无磁化层相邻,并且具有5nm至20nm范围内的厚度。 无磁化层设置在自旋过滤层和非磁性金属层之间。 磁化固定层,磁化自由层,非磁性层,电阻增加层和自旋滤波器层设置在电极之间。

    High-Frequency Oscillator
    70.
    发明申请
    High-Frequency Oscillator 有权
    高频振荡器

    公开(公告)号:US20080129401A1

    公开(公告)日:2008-06-05

    申请号:US12027650

    申请日:2008-02-07

    IPC分类号: H03B5/40

    摘要: A high-frequency oscillator includes a high-frequency oscillation element having a magnetization pinned layer whose magnetization direction is pinned substantially in one direction, an oscillation layer formed of a magnetic material which generates a high-frequency oscillation phenomenon when a current is supplied, an intermediate layer provided between the magnetization pinned layer and the oscillation layer, the intermediate layer having an insulation layer and current paths which pass through the insulation layer in a thickness direction, and a pair of electrodes which supply a current perpendicularly to a plane of a stacked film including the magnetization pinned layer, the intermediate layer and the oscillation layer.

    摘要翻译: 高频振荡器包括:高频振荡元件,具有磁化被钉扎层,其磁化方向基本上被固定在一个方向上;振动层,其由在供应电流时产生高频振荡现象的磁性材料形成, 中间层设置在磁化被钉扎层和振荡层之间,中间层具有绝缘层和沿厚度方向穿过绝缘层的电流路径,以及一对电极,其垂直于堆叠的平面提供电流 膜包括磁化固定层,中间层和振荡层。