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51.发明申请公开(公告)号：US20110002199A1
公开(公告)日：2011-01-06
申请号：US12496340
申请日：2009-07-01
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译： 提供能够避免产生的近场光的噪声的近场光发生器。 发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。 波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。 并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。 通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声 。
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52.发明申请Magneto-resistance effect element having Heusler alloy compounds adjacent to spacer layer 审中-公开具有与间隔层相邻的Heusler合金化合物的磁阻效应元件公开(公告)号：US20070121255A1
公开(公告)日：2007-05-31
申请号：US11519921
申请日：2006-09-13
CPC分类号： B82Y25/00 , B82Y40/00 , G01R33/093 , G11B5/3906 , H01F10/1936 , H01F10/3272 , H01F41/303 , H01L43/10
摘要： A magneto-resistance effect element according to the present invention comprises a pinned layer whose magnetization direction is fixed; a free layer whose magnetization direction varies in accordance with an external magnetic field; and a nonmagnetic spacer layer that is arranged between said pinned layer and said free layer. At least either said pinned layer or said free layer includes a Heusler alloy layer that is disposed adjacent to said spacer layer, and compounds are arranged in a dotted pattern at an interface between said spacer layer and at least said spacer layer and said pinned layer or said spacer layer and said free layer, said compounds including material that is included in said Heusler alloy layer.
摘要翻译： 根据本发明的磁阻效应元件包括其磁化方向固定的钉扎层; 其磁化方向根据外部磁场而变化的自由层; 以及布置在所述被钉扎层和所述自由层之间的非磁性间隔层。 所述被钉扎层或所述自由层中的至少一个包括邻近所述间隔层设置的Heusler合金层，并且化合物以虚线图案布置在所述间隔层和至少所述间隔层和所述钉扎层之间的界面处，或 所述间隔层和所述自由层，所述化合物包括包含在所述Heusler合金层中的材料。
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53.发明授权公开(公告)号：US07895731B2
公开(公告)日：2011-03-01
申请号：US11766926
申请日：2007-06-22
CPC分类号： G01R33/093 , B82Y25/00 , B82Y40/00 , G11B5/3906 , H01F10/1936 , H01F10/3272 , H01F41/304 , H01L43/08 , H01L43/10 , H01L43/12 , Y10T29/49025 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048
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。
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54.发明申请Magnetoresistive element including heusler alloy layer and method of manufacturing same 有权包括heusler合金层的磁阻元件及其制造方法公开(公告)号：US20070274010A1
公开(公告)日：2007-11-29
申请号：US11725476
申请日：2007-03-20
IPC分类号： G11B5/33
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3929 , G11B2005/3996
摘要： An MR element incorporates a nonmagnetic conductive layer, and a pinned layer and a free layer that are disposed to sandwich the nonmagnetic conductive layer. Each of the pinned layer and the free layer includes a Heusler alloy layer. The Heusler alloy layer contains a Heusler alloy in which atoms of a magnetic metallic element are placed at body-centered positions of unit cells, and an additive element that is a nonmagnetic metallic element that does not constitute the Heusler alloy. At least one of the pinned layer and the free layer includes a region in which the concentration of the additive element increases as the distance from the nonmagnetic conductive layer decreases, the region being adjacent to the nonmagnetic conductive layer.
摘要翻译： MR元件包括非磁性导电层，以及设置成夹持非磁性导电层的被钉扎层和自由层。 每个被钉扎层和自由层包括Heusler合金层。 Heusler合金层包含Heusler合金，其中磁性金属元素的原子被放置在单元电池的体中心位置，而添加元素是不构成Heusler合金的非磁性金属元素。 被钉扎层和自由层中的至少一个包括随着距离非磁性导电层的距离减小的添加元素的浓度增加的区域，该区域与非磁性导电层相邻。
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55.发明授权Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device 有权热辅助磁记录头，磁头万向架组件和磁记录装置公开(公告)号：US08369192B1
公开(公告)日：2013-02-05
申请号：US13298360
申请日：2011-11-17
申请人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Daisuke Miyauchi
发明人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Daisuke Miyauchi
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head enables even steeper magnetization reversal between adjacent magnetic domains of a magnetic recording medium and satisfies the demand for high SN ratio and high recording density. The thermally-assisted magnetic recording head includes a pole that generates a writing magnetic field from an end surface that forms a part of an air bearing surface that opposes a magnetic recording medium, a waveguide through which light for exciting surface plasmon propagates, and a plasmon generator that couples to the light in a surface plasmon mode. The plasmon generator has a plane part and a projection part, the pole has a projection part opposing surface that opposes the projection part, and the distance between the projection part opposing surface and the projection part is 10-40 nm.
摘要翻译： 热辅助磁记录头使磁记录介质的相邻磁畴之间的磁化反转能够更高，并满足高SN比和高记录密度的要求。 热辅助磁记录头包括从形成与磁记录介质相对的空气轴承表面的一部分的端面产生书写磁场的磁极，用于激发表面等离子体激元的光传播的波导和等离子体激元 发生器以表面等离子体模式耦合到光。 等离子体发生器具有平面部分和突出部分，所述极具有与突出部分相对的突出部分相对表面，并且突出部分相对表面和突出部分之间的距离为10-40nm。
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公开(公告)号：US08305849B2
公开(公告)日：2012-11-06
申请号：US13013025
申请日：2011-01-25
申请人： Shinji Hara , Tsutomu Chou , Koji Shimazawa , Daisuke Miyauchi , Kosuke Tanaka
发明人： Shinji Hara , Tsutomu Chou , Koji Shimazawa , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic head that includes an air bearing surface facing a recording medium and that performs magnetic recording while heating the recording medium includes: a magnetic recording element including a pole of which one edge part is positioned on the air bearing surface and that generates magnetic flux traveling toward the magnetic recording medium; a waveguide configured with a core through which light propagates and a cladding, at least one part of which extends to the air bearing surface, surrounding the periphery of the core; a plasmon generator that faces a part of the core and that extends to the air bearing surface. The plasmon generator is configured with a first part and a second part that are joined; the first part that is positioned on the air bearing surface side and that is made of a high melting point material, and the second part that is positioned away from the air bearing surface and that is made of a material with a small value ∈″, which is an imaginary component of permittivity.
摘要翻译： 一种热辅助磁头，其包括面向记录介质的空气轴承表面并且在加热记录介质的同时进行磁记录的磁辅助磁头包括：磁记录元件，其包括：一个边缘部分位于空气轴承表面上并产生 向磁记录介质传播的磁通量; 配置有光传播的芯的波导和包围，其至少一部分延伸到空气支承表面，围绕芯的周边; 等离子体发生器，其面向芯部的一部分并且延伸到空气轴承表面。 等离子体发生器配置有连接的第一部分和第二部分; 位于空气轴承面侧并由高熔点材料制成的第一部分和远离空气轴承表面并由具有小值∈“的材料制成的第二部分， 这是介电常数的虚部。
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57.发明授权公开(公告)号：US08102736B2
公开(公告)日：2012-01-24
申请号：US12496340
申请日：2009-07-01
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译： 提供能够避免产生的近场光的噪声的近场光发生器。 发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。 波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。 并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。 通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声 。
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公开(公告)号：US20110228420A1
公开(公告)日：2011-09-22
申请号：US12728890
申请日：2010-03-22
申请人： Shinji Hara , Tsutomu Chou , Kosuke Tanaka , Eiji Komura , Koji Shimazawa , Daisuke Miyauchi , Susumu Aoki , Takeshi Tsutsumi
发明人： Shinji Hara , Tsutomu Chou , Kosuke Tanaka , Eiji Komura , Koji Shimazawa , Daisuke Miyauchi , Susumu Aoki , Takeshi Tsutsumi
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A plasmon generator has an outer surface including a plasmon exciting part, and has a near-field light generating part located in a medium facing surface. The plasmon exciting part faces an evanescent light generating surface of a waveguide's core with a predetermined distance therebetween. The outer surface of the plasmon generator further includes first and second inclined surfaces that are each connected to the plasmon exciting part. The first and second inclined surfaces increase in distance from each other with increasing distance from the plasmon exciting part. The plasmon generator includes a shape changing portion where the angle of inclination of each of the first and second inclined surfaces with respect to the evanescent light generating surface increases continuously with decreasing distance to the medium facing surface.
摘要翻译： 等离子体发生器具有包括等离子体激元部分的外表面，并且具有位于介质面对表面中的近场光产生部分。 等离子激元激发部分面对波导芯的渐逝光产生表面，其间具有预定的距离。 等离子体发生器的外表面还包括各自连接到等离子体激元部分的第一和第二倾斜表面。 第一和第二倾斜表面随距离等离激子激发部分的距离增加而彼此间距离增加。 等离子体发生器包括形状改变部分，其中第一和第二倾斜表面中的每一个相对于ev逝光产生表面的倾斜角度随着到介质面向表面的距离的减小而连续增加。
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59.发明授权Magneto-resistive element having a cap layer for canceling spin injection effect 有权具有用于消除自旋注入效果的盖层的磁阻元件公开(公告)号：US07656621B2
公开(公告)日：2010-02-02
申请号：US11581478
申请日：2006-10-17
CPC分类号： G11B5/3932 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B2005/3996
摘要： A magneto-resistive element has: a first stacked film assembly having a pinned layer, a spacer layer, and a free layer; a first electrode layer which is arranged such that the first layer is in contact with the first electrode layer on the other side of the first layer, the first electrode layer being made of a ferromagnetic material; and a second electrode layer which is arranged on a side that is opposite to the first electrode layer with regard to the first stacked film assembly. The first and second electrode layers are adapted to apply a sense current to the first stacked film assembly and the first layer in a direction that is perpendicular to layer surfaces. The first layer is made of gold, silver, copper, ruthenium, rhodium, iridium, chromium or platinum, or an alloy thereof.
摘要翻译： 磁阻元件具有：具有钉扎层，间隔层和自由层的第一层叠膜组件; 第一电极层，被布置成使得第一层与第一层的另一侧上的第一电极层接触，第一电极层由铁磁材料制成; 以及相对于第一层叠膜组件布置在与第一电极层相对的一侧的第二电极层。 第一和第二电极层适于在垂直于层表面的方向上向第一堆叠膜组件和第一层施加感测电流。 第一层由金，银，铜，钌，铑，铱，铬或铂或其合金制成。
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公开(公告)号：US08472150B2
公开(公告)日：2013-06-25
申请号：US11968911
申请日：2008-01-03
申请人： Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata , Koji Shimazawa , Shinji Hara
发明人： Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata , Koji Shimazawa , Shinji Hara
IPC分类号： G11B5/33
CPC分类号： G01R33/093 , B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B5/3993 , G11B2005/3996 , H01F10/3259 , H01F10/3272 , H01L43/10
摘要： A giant magneto-resistive effect device (CPP-GMR device) having the CPP (current perpendicular to plane) structure comprising a spacer layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked one upon another with the spacer layer interposed between them, with a sense current applied in a stacking direction, wherein the spacer layer comprises a first nonmagnetic metal layer and a second nonmagnetic metal layer, each made of a nonmagnetic metal material, and a semiconductor oxide layer interposed between the first nonmagnetic metal layer and the second nonmagnetic metal layer, the semiconductor oxide layer that forms a part of the spacer layer contains zinc oxide as its main component wherein the main component zinc oxide contains an additive metal, and the additive metal is less likely to be oxidized than zinc.
摘要翻译： 具有包括间隔层的CPP（垂直于平面的电流）结构的巨磁阻效应器件（CPP-GMR器件），以及间隔层彼此叠置的第一铁磁层和第二铁磁层， 其中所述间隔层包括由非磁性金属材料制成的第一非磁性金属层和第二非磁性金属层，以及插入在所述第一非磁性金属层和所述第二非磁性金属层之间的半导体氧化物层 非磁性金属层，形成间隔层的一部分的半导体氧化物层含有氧化锌作为主要成分，其中主要成分氧化锌含有添加金属，添加金属不太可能被氧化成锌。
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