Thermally-assisted magnetic recording head including a protruding member
    1.
    发明授权
    Thermally-assisted magnetic recording head including a protruding member 有权
    包括突出构件的热辅助磁记录头

    公开(公告)号:US08325570B1

    公开(公告)日:2012-12-04

    申请号:US13363795

    申请日:2012-02-01

    IPC分类号: G11B11/00

    摘要: A thermally-assisted magnetic recording head includes: a medium facing surface; a magnetic pole; a waveguide including a core and a cladding; a plasmon generator; and a protruding member. The protruding member is disposed between the medium facing surface and a front end face of the core facing toward the medium facing surface. The protruding member has a first end face located in the medium facing surface, and a second end face facing toward the front end face of the core and receiving light having propagated through the core and passed through the front end face. The protruding member is formed of a metal different from both a material forming the magnetic pole and a material forming the plasmon generator. The protruding member is heated and expanded by the light received at the second end face, so that the first end face gets protruded toward a magnetic recording medium.

    摘要翻译: 一种热辅助磁记录头包括:面向介质的表面; 磁极 包括芯和包层的波导; 等离子体发生器; 和突出部件。 突出构件设置在面向介质的表面和芯的前端面之间,面向面向介质的表面。 突出构件具有位于介质相对表面中的第一端面和面向芯的前端面的第二端面,并且接收已经穿过芯并且穿过前端面的光。 突出部件由不同于形成磁极的材料和形成等离子体激元发生器的材料形成。 突出部件被第二端面所接收的光线加热膨胀,使得第一端面朝向磁记录介质突出。

    Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element
    2.
    发明授权
    Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element 有权
    热辅助磁头,磁头装置和包括记录元件和近场光产生元件的磁记录/再现装置

    公开(公告)号:US08570843B2

    公开(公告)日:2013-10-29

    申请号:US13402318

    申请日:2012-02-22

    IPC分类号: G11B11/00

    摘要: The present invention provides a thermally assisted magnetic head with improved recording performance. The thermally assisted magnetic head includes a recording element and a near-field light generating element. The recording element includes a main pole appearing on a medium-facing surface, and a bit inversion starting region intended to be a maximum recording magnetic field generating position is formed at a leading edge of the main pole. The near-field light generating element is located on a leading side of the main pole and capable of creating a heating spot due to a near-field light on a near-field light generating end face appearing on the medium-facing surface. The bit inversion starting region is located within one-half of a diameter of the heating spot from a center of the heating spot.

    摘要翻译: 本发明提供了具有改进的记录性能的热辅助磁头。 热辅助磁头包括记录元件和近场光产生元件。 记录元件包括出现在面向中间的表面上的主极,并且在主极的前缘形成旨在成为最大记录磁场产生位置的位反转起始区。 近场光产生元件位于主极的前导侧,并且能够在出现在面向中间的表面上的近场光产生端面上产生由于近场光产生的加热点。 位反转起始区域位于加热点的直径从加热点的中心的一半的范围内。

    Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole
    3.
    发明授权
    Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole 有权
    能够防止传播的光被磁极吸收的热辅助磁记录头

    公开(公告)号:US08462594B1

    公开(公告)日:2013-06-11

    申请号:US13405893

    申请日:2012-02-27

    IPC分类号: G11B11/00

    摘要: A thermally-assisted magnetic recording head includes a medium facing surface, a magnetic pole, a waveguide including a core and a cladding, and a plasmon generator. The magnetic pole is located forward of the core in the direction of travel of a magnetic recording medium. The plasmon generator is disposed between the core and the magnetic pole. The core has an evanescent light generating surface facing toward the plasmon generator. The plasmon generator has a front end face located in the medium facing surface, a flat surface facing toward the'evanescent light generating surface, and first and second side surfaces that are at a distance from each other and are located farther from the evanescent light generating surface than is the flat surface.

    摘要翻译: 一种热辅助磁记录头包括面向介质的表面,磁极,包括芯和包层的波导,以及等离子体激元发生器。 磁极位于磁芯的前方,位于磁记录介质的行进方向。 等离子体发生器设置在芯和磁极之间。 核心具有面向等离子体发生器的ev逝光产生表面。 等离子体激元发生器具有位于介质面向表面中的前端面,面向朝向光生成表面的平坦表面,以及彼此相距一定距离并且远离产生ev逝光的第一和第二侧表面 表面比平坦的表面。

    Thermally-assisted magnetic recording head
    4.
    发明授权
    Thermally-assisted magnetic recording head 有权
    热辅助磁记录头

    公开(公告)号:US08254215B1

    公开(公告)日:2012-08-28

    申请号:US13282943

    申请日:2011-10-27

    IPC分类号: G11B11/00

    摘要: A thermally-assisted magnetic recording head includes a main pole, a waveguide, and a plasmon generator. The main pole has a front end face including first and second ends that are opposite in a track width direction. An arbitrary cross section of the main pole that passes through an arbitrary point on the front end face and is perpendicular to a medium facing surface and to the track width direction has a length in a direction perpendicular to the medium facing surface. When the arbitrary point on the front end face is located at a center of the front end face in the track width direction, the length of the arbitrary cross section is smaller than that when the arbitrary point is located at the first end and that when the arbitrary point is located at the second end.

    摘要翻译: 热辅助磁记录头包括主极,波导和等离子体发生器。 主极具有包括在轨道宽度方向上相对的第一端和第二端的前端面。 主极的任意横截面,其通过前端面上的任意点并且垂直于介质相对表面和轨道宽度方向,具有与面向介质的表面垂直的方向的长度。 当前端面上的任意点位于轨道宽度方向上的前端面的中心时,任意横截面的长度小于任意点位于第一端的长度,而当 任意点位于第二端。

    Plasmon generator and thermally-assisted magnetic recording head having the same
    5.
    发明授权
    Plasmon generator and thermally-assisted magnetic recording head having the same 有权
    等离子体发生器和具有相同功能的热辅助磁记录头

    公开(公告)号:US08964514B2

    公开(公告)日:2015-02-24

    申请号:US13568542

    申请日:2012-08-07

    摘要: A plasmon-generator of the invention is configured to include a first configuration member including a near-field light generating end surface; and a second configuration member joined and integrated with the first configuration member and not including the near-field light generating end surface. The first configuration member is configured to contain Au as a primary component and to contain any one or more elements selected from a group of Co, Fe, Sb, Nb, Zr, Ti, Hf, and Ta, and is configured so that a content percentage X1 of the contained element is within a range between 0.2 at % or more and 2.0 at % or less. Thereby, thermostability, optical characteristic, and the process stability are satisfied. Also, heat dissipation and heat generation suppression effect are extremely superior.

    摘要翻译: 本发明的等离子体发生器被构造成包括包括近场光产生端面的第一配置构件; 以及第二构造构件,其与所述第一构造构件接合并且一体化,并且不包括所述近场光产生端面。 第一配置构件被配置为包含Au作为主要成分并且包含选自Co,Fe,Sb,Nb,Zr,Ti,Hf和Ta中的任何一种或多种元素,并且被配置为使得含量 所含有的元素的X1的比例在0.2at%以上且2.0at%以下的范围内。 由此,满足热稳定性,光学特性和工艺稳定性。 此外,散热和发热抑制效果非常优异。

    Thermally-assisted magnetic recording head including a plasmon generator and a magnetic pole
    6.
    发明授权
    Thermally-assisted magnetic recording head including a plasmon generator and a magnetic pole 有权
    包括等离子体发生器和磁极的热辅助磁记录头

    公开(公告)号:US08503270B1

    公开(公告)日:2013-08-06

    申请号:US13456734

    申请日:2012-04-26

    IPC分类号: G11B11/00 G11B5/02

    摘要: A thermally-assisted magnetic recording head includes a magnetic pole, a waveguide, and a plasmon generator. The plasmon generator and the magnetic pole are disposed to align in the direction of travel of a magnetic recording medium. The thermally-assisted magnetic recording head further includes an amorphous layer made of a nonmagnetic metal, the amorphous layer being interposed between and in contact with the plasmon generator and the magnetic pole.

    摘要翻译: 热辅助磁记录头包括磁极,波导和等离子体发生器。 等离子体发生器和磁极设置成在磁记录介质的行进方向上对齐。 热辅助磁记录头还包括由非磁性金属制成的非晶层,该非晶层介于等离子体发生器和磁极之间并与其接触。

    Thermally-assisted magnetic recording head including a magnetic pole and a heating element
    7.
    发明授权
    Thermally-assisted magnetic recording head including a magnetic pole and a heating element 有权
    包括磁极和加热元件的热​​辅助磁记录头

    公开(公告)号:US08605387B2

    公开(公告)日:2013-12-10

    申请号:US13412109

    申请日:2012-03-05

    IPC分类号: G11B5/127

    摘要: A thermally-assisted magnetic recording head includes a magnetic pole and a heating element. The magnetic pole has a front end face located in a medium facing surface. The magnetic pole forms on a track a distribution of write magnetic field strength that peaks at a first position on the track. The heating element forms on the track a distribution of temperature that peaks at a second position on the track. The first position is located on the trailing side relative to the second position. The front end face of the magnetic pole has a main portion and first and second extended portions. The first and second extended portions are extended in the track width direction from the main portion at positions on the leading side relative to the center of the main portion in the direction of travel of a magnetic recording medium.

    摘要翻译: 热辅助磁记录头包括磁极和加热元件。 磁极具有位于介质相对表面中的前端面。 磁道在轨道上形成写入磁场强度的分布,其在轨道上的第一位置处达到峰值。 加热元件在轨道上形成在轨道上的第二位置处峰值的温度分布。 第一位置位于相对于第二位置的后侧。 磁极的前端面具有主要部分和第一和第二延伸部分。 第一延伸部分和第二延伸部分在磁记录介质的行进方向上相对于主要部分的中心在前侧的位置处从主要部分在轨道宽度方向上延伸。

    Method for manufacturing magnetic field detecting element, utilizing diffusion of metal
    8.
    发明授权
    Method for manufacturing magnetic field detecting element, utilizing diffusion of metal 有权
    利用金属扩散制造磁场检测元件的方法

    公开(公告)号:US07672092B2

    公开(公告)日:2010-03-02

    申请号:US11708537

    申请日:2007-02-21

    IPC分类号: G11B5/127

    摘要: A method for manufacturing a magnetic field detecting element has the steps of: forming stacked layers by sequentially depositing a pinned layer, a spacer layer, a spacer adjoining layer which is adjacent to the spacer layer, a metal layer, and a Heusler alloy layer in this order, such that the layers adjoin each other; and heat treating the stacked layers in order to form the free layer out of the spacer adjoining layer, the metal layer, and the Heusler alloy layer. The spacer adjoining layer is mainly formed of cobalt and iron, and has a body centered cubic structure, and the metal layer is formed of an element selected from the group consisting of silver, gold, copper, palladium, or platinum, or is formed of an alloy thereof.

    摘要翻译: 一种制造磁场检测元件的方法,其特征在于:通过依次沉积与间隔层相邻的钉扎层,间隔层,间隔物邻接层,金属层和Heusler合金层,形成堆叠层 这个顺序,使得这些层彼此相邻; 并且对层叠层进行热处理,以便在间隔物邻接层,金属层和Heusler合金层之间形成自由层。 间隔物邻接层主要由钴和铁形成,并且具有体心立方结构,金属层由选自银,金,铜,钯或铂的元素形成,或由 其合金。

    Method for manufacturing magnetic field detecting element utilizing diffusion and migration of silver
    9.
    发明授权
    Method for manufacturing magnetic field detecting element utilizing diffusion and migration of silver 有权
    利用银的扩散和迁移制造磁场检测元件的方法

    公开(公告)号:US07895731B2

    公开(公告)日:2011-03-01

    申请号:US11766926

    申请日:2007-06-22

    IPC分类号: G11B5/127 H04R31/00

    摘要: A method for manufacturing a magnetic field detecting element having a free layer whose magnetization direction is variable depending on an external magnetic field and a pinned layer whose magnetization direction is fixed and these are stacked with an electrically conductive, nonmagnetic spacer layer sandwiched therebetween, wherein sense current flows in a direction perpendicular to film planes of the magnetic field detecting element. The method comprises: forming a spacer adjoining layer adjacent to the spacer layer, Heusler alloy layer, and a metal layer successively in this order; and forming either at least a part of the pinned layer or the free layer by heating the spacer adjoining layer, the Heusler alloy layer, and the metal layer. The spacer adjoining layer has a layer chiefly made of cobalt and iron. The Heusler alloy layer includes metal which is silver, gold, copper, palladium, or platinum, or an alloy thereof. The metal layer is made of the same.

    摘要翻译: 一种磁场检测元件的制造方法,该磁场检测元件具有磁化方向根据外部磁场而变化的自由层,其磁化方向固定的被钉扎层与夹在其间的导电非磁性间隔层堆叠, 电流在垂直于磁场检测元件的膜平面的方向上流动。 该方法包括:依次形成与间隔层相邻的间隔物邻接层,Heusler合金层和金属层; 以及通过加热间隔物邻接层,Heusler合金层和金属层来形成被钉扎层或自由层的至少一部分。 间隔物邻接层具有主要由钴和铁制成的层。 Heusler合金层包括银,金,铜,钯或铂的金属或其合金。 金属层由其制成。

    Method for manufacturing magnetic field detecting element, utilizing diffusion of metal
    10.
    发明申请
    Method for manufacturing magnetic field detecting element, utilizing diffusion of metal 有权
    利用金属扩散制造磁场检测元件的方法

    公开(公告)号:US20070291422A1

    公开(公告)日:2007-12-20

    申请号:US11708537

    申请日:2007-02-21

    IPC分类号: G11B5/39 G11B5/33 G11B5/48

    摘要: A method for manufacturing a magnetic field detecting element has the steps of: forming stacked layers by sequentially depositing a pinned layer, a spacer layer, a spacer adjoining layer which is adjacent to the spacer layer, a metal layer, and a Heusler alloy layer in this order, such that the layers adjoin each other; and heat treating the stacked layers in order to form the free layer out of the spacer adjoining layer, the metal layer, and the Heusler alloy layer. The spacer adjoining layer is mainly formed of cobalt and iron, and has a body centered cubic structure, and the metal layer is formed of an element selected from the group consisting of silver, gold, copper, palladium, or platinum, or is formed of an alloy thereof.

    摘要翻译: 一种制造磁场检测元件的方法,其特征在于:通过依次沉积与间隔层相邻的钉扎层,间隔层,间隔物邻接层,金属层和Heusler合金层,形成堆叠层 这个顺序,使得这些层彼此相邻; 并且对层叠层进行热处理,以便在间隔物邻接层,金属层和Heusler合金层之间形成自由层。 间隔物邻接层主要由钴和铁形成,并且具有体心立方结构,金属层由选自银,金,铜,钯或铂的元素形成,或者由 其合金。