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公开(公告)号：US08143684B2
公开(公告)日：2012-03-27
申请号：US13013141
申请日：2011-01-25
CPC分类号： H01L43/08 , G11C11/161 , G11C11/1659 , H01L27/224 , H01L27/228
摘要： A magnetoresistive element includes a first magnetic layer which includes a first surface and a second surface and has a first standard electrode potential, a second magnetic layer, a barrier layer which is provided between the second magnetic layer and the first surface of the first magnetic layer, and a nonmagnetic cap layer which contacts the second surface of the first magnetic layer and is formed from an alloy of a first metal material and a second metal material, the first metal material having a second standard electrode potential lower than the first standard electrode potential, the second metal material having a third standard electrode potential higher than the first standard electrode potential.
摘要翻译： 磁阻元件包括第一磁性层，其包括第一表面和第二表面，并且具有第一标准电极电位，第二磁性层，设置在第二磁性层和第一磁性层的第一表面之间的阻挡层 以及非磁性覆盖层，其与所述第一磁性层的第二表面接触并且由第一金属材料和第二金属材料的合金形成，所述第一金属材料具有低于所述第一标准电极电位的第二标准电极电位 所述第二金属材料具有比所述第一标准电极电位高的第三标准电极电位。
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82.发明授权Magnetoresistance effect element with shift canceling layer having pattern area greater than that of storage layer 有权磁阻效应元件具有移位消除层，其图案面积大于存储层的图案面积公开(公告)号：US09269890B2
公开(公告)日：2016-02-23
申请号：US14014210
申请日：2013-08-29
申请人： Masahiko Nakayama , Toshihiko Nagase , Tadashi Kai , Youngmin Eeh , Koji Ueda , Yutaka Hashimoto , Daisuke Watanabe , Kazuya Sawada
发明人： Masahiko Nakayama , Toshihiko Nagase , Tadashi Kai , Youngmin Eeh , Koji Ueda , Yutaka Hashimoto , Daisuke Watanabe , Kazuya Sawada
CPC分类号： H01L43/08 , H01F10/3254 , H01F10/3259 , H01F41/325
摘要： According to one embodiment, a magnetoresistance effect element includes a reference layer, a shift canceling layer, a storage layer provided between the reference layer and the shift canceling layer, a tunnel barrier layer provided between the reference layer and the storage layer, and a spacer layer provided between the shift canceling layer and the storage layer, wherein a pattern of the storage layer is provided inside a pattern of the shift canceling layer when the patterns of the storage layer and the shift canceling layer are viewed from a direction perpendicular to the patterns of the storage layer and the shift canceling layer.
摘要翻译： 根据一个实施例，磁阻效应元件包括参考层，移位消除层，设置在参考层和移位消除层之间的存储层，设置在参考层和存储层之间的隧道势垒层，以及间隔物 设置在移位消除层和存储层之间的层，其中当从垂直于图案的方向观察存储层和移位消除层的图案时，存储层的图案设置在移位消除层的图案内部 的存储层和移位消除层。
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公开(公告)号：US09178137B2
公开(公告)日：2015-11-03
申请号：US13963682
申请日：2013-08-09
申请人： Youngmin Eeh , Katsuya Nishiyama , Daisuke Ikeno , Toshihiko Nagase , Tadashi Kai , Daisuke Watanabe
发明人： Youngmin Eeh , Katsuya Nishiyama , Daisuke Ikeno , Toshihiko Nagase , Tadashi Kai , Daisuke Watanabe
CPC分类号： H01L43/12 , H01L27/226 , H01L43/08
摘要： A magnetoresistive element includes first and magnetic layers, first and second non-magnetic layers and a W layer. Each of the first and second magnetic layers includes an axis of easy magnetization in a direction perpendicular to a film plane. The first magnetic layer has a variable magnetization direction. The second magnetic layer has an invariable magnetization direction. The first non-magnetic layer is provided between the first and second magnetic layers. The second non-magnetic layer is arranged on a surface of the first magnetic layer opposite to a surface on which the first non-magnetic layer is arranged and contains MgO. The W layer is arranged on a surface of the second non-magnetic layer opposite to a surface on which the first magnetic layer is arranged, and is in contact with the surface of the second non-magnetic layer.
摘要翻译： 磁阻元件包括第一和第二磁性层，第一和第二非磁性层以及W层。 第一和第二磁性层中的每一个包括在垂直于膜平面的方向上易磁化的轴。 第一磁性层具有可变的磁化方向。 第二磁性层具有不变的磁化方向。 第一非磁性层设置在第一和第二磁性层之间。 第二非磁性层布置在第一磁性层的与布置第一非磁性层的表面相对的表面上并且包含MgO。 W层布置在第二非磁性层的与布置第一磁性层的表面相对的表面上，并与第二非磁性层的表面接触。
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84.发明申请公开(公告)号：US20050018547A1
公开(公告)日：2005-01-27
申请号：US10920182
申请日：2004-08-18
IPC分类号： G11B11/10 , G11B5/00 , G11B5/02 , G11B5/127 , G11B5/31 , G11B5/39 , G11B7/00 , G11B13/04 , G11B11/00
CPC分类号： G11B5/4826 , G11B5/127 , G11B5/3103 , G11B5/3967 , G11B5/4833 , G11B7/00 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength λ of injected light, highly intensive evanescent light is generated from the gap position of the opposite surface. Magnetic writing is carried out by applying a recording magnetic field from the pair of members to a medium heated by the evanescent light.
摘要翻译： 经由间隙彼此相对的一对构件通常用作渐逝光探针和写入磁头。 当间隙的间隔和宽度小于注入的光的波长λ时，从相对表面的间隙位置产生高度强烈的消逝光。 通过将记录磁场从一对构件施加到由渐逝光加热的介质来进行磁写入。
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公开(公告)号：US08659103B2
公开(公告)日：2014-02-25
申请号：US13424136
申请日：2012-03-19
CPC分类号： H01L27/228 , H01L43/08 , H01L43/10
摘要： According to one embodiment, a magnetoresistive element includes the following configuration. A first magnetic layer has an invariable magnetization. A second magnetic layer has a variable magnetization. A nonmagnetic layer is provided between the first and the second magnetic layers. The first magnetic layer has a structure in which first, second and third magnetic material films and a nonmagnetic material film are stacked. The first magnetic material film is provided in contact with the nonmagnetic layer, the nonmagnetic material film is provided in contact with the first magnetic material film, the second magnetic material film is provided in contact with the nonmagnetic material film, and the third magnetic material film is provided in contact with the second magnetic material film. The second magnetic material film has a Co concentration higher than that of the first magnetic material film.
摘要翻译： 根据一个实施例，磁阻元件包括以下构造。 第一磁性层具有不变的磁化。 第二磁性层具有可变磁化强度。 在第一和第二磁性层之间提供非磁性层。 第一磁性层具有堆叠第一，第二和第三磁性材料膜和非磁性材料膜的结构。 第一磁性材料膜设置成与非磁性层接触，非磁性材料膜设置成与第一磁性材料膜接触，第二磁性材料膜设置成与非磁性材料膜接触，并且第三磁性材料膜 设置成与第二磁性材料膜接触。 第二磁性材料膜的Co浓度高于第一磁性材料膜。
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公开(公告)号：US20050036225A1
公开(公告)日：2005-02-17
申请号：US10944882
申请日：2004-09-21
IPC分类号： G11B5/65 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/64 , G11B5/66 , G11B5/73 , G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B5/7325 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/64 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording-reproducing apparatus has a magnetic recording medium having a nonmagnetic substrate, and a functional layer and a recording layer formed on the nonmagnetic substrate, the recording layer exhibiting a magnetic anisotropy energy density KuRL, the functional layer developing ferromagnetism upon irradiation with light so as to exhibit a magnetic anisotropy energy density KuFL lower than the magnetic anisotropy energy density KuRL and the functional layer serving to lower the magnetic anisotropy energy density of the recording layer through exchange coupling interaction with the recording layer when the functional layer is irradiated with light, a light source which irradiates the functional layer with light, and a magnetic head having a writing head writing signal magnetization by applying a magnetic field to the recording layer and a reading head reading the signal magnetization recorded in the recording layer.
摘要翻译： 磁记录再现装置具有具有非磁性基板的磁记录介质和形成在非磁性基板上的功能层和记录层，记录层呈现磁各向异性能量密度KuRL，功能层在照射光时显现出铁磁性 以便表现出低于磁各向异性能量密度KuRL的磁各向异性能量密度KuFL以及当功能层被光照射时通过与记录层的交换耦合相互作用来降低记录层的磁各向异性能量密度的功能层 ，用光照射功能层的光源，以及具有通过向记录层施加磁场而具有写入信号磁化的写入头的磁头以及读取记录在记录层中的信号磁化的读取头。
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公开(公告)号：US06930847B2
公开(公告)日：2005-08-16
申请号：US10236931
申请日：2002-09-09
IPC分类号： G11B5/65 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/64 , G11B5/66 , G11B5/73 , G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B5/7325 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/64 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording-reproducing apparatus has a magnetic recording medium having a nonmagnetic substrate, and a functional layer and a recording layer formed on the nonmagnetic substrate, the recording layer exhibiting a magnetic anisotropy energy density KuRL, the functional layer developing ferromagnetism upon irradiation with light so as to exhibit a magnetic anisotropy energy density KuFL lower than the magnetic anisotropy energy density KuRL and the functional layer serving to lower the magnetic anisotropy energy density of the recording layer through exchange coupling interaction with the recording layer when the functional layer is irradiated with light, a light source which irradiates the functional layer with light, and a magnetic head having a writing head writing signal magnetization by applying a magnetic field to the recording layer and a reading head reading the signal magnetization recorded in the recording layer.
摘要翻译： 磁记录再现装置具有磁记录介质，其具有非磁性基板，以及在非磁性基板上形成的功能层和记录层，所述记录层呈现磁各向异性能量密度Ku <！ - SIPO
的功能层，而功能层用于降低 当功能层被光照射时通过与记录层的交换耦合相互作用的记录层的磁各向异性能量密度，用光照射功能层的光源以及具有写入头写入信号磁化的磁头通过施加 记录层的磁场和读取记录在记录层中的信号磁化的读取头。 -
88.发明授权公开(公告)号：US06830824B2
公开(公告)日：2004-12-14
申请号：US09878384
申请日：2001-06-12
申请人： Akira Kikitsu , Junichi Akiyama , Katsutaro Ichihara , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda
发明人： Akira Kikitsu , Junichi Akiyama , Katsutaro Ichihara , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda
IPC分类号： G11B11105
CPC分类号： G11B5/00 , G11B5/66 , G11B2005/0002 , G11B2005/0021 , Y10T428/12861 , Y10T428/12875 , Y10T428/12986 , Y10T428/265
摘要： A magnetic recording medium has a substrate, a base layer formed on the substrate and including a magnetic material, a switching layer formed on the base layer and including a nonmagnetic material, and a recording layer formed on the switching layer and having a structure comprising magnetic particles and a nonmagnetic wall buried between the magnetic particles. The medium meets the condition of TcB>Tsw, where TcB is a Curie temperature of the base layer, and Tsw is a temperature at which the recording layer and the base layer begin to exert exchange coupling interaction.
摘要翻译： 磁记录介质具有基板，形成在基板上的基层，包括磁性材料，形成在基层上的包含非磁性材料的开关层以及形成在开关层上的具有包括磁性的结构的记录层 颗粒和埋在磁性颗粒之间的非磁性壁。 介质满足TcB> Tsw的条件，其中TcB是基层的居里温度，Tsw是记录层和基层开始发生交换耦合相互作用的温度。
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89.发明授权公开(公告)号：US07372648B2
公开(公告)日：2008-05-13
申请号：US10920182
申请日：2004-08-18
IPC分类号： G11B11/00
CPC分类号： G11B5/4826 , G11B5/127 , G11B5/3103 , G11B5/3967 , G11B5/4833 , G11B7/00 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength λ of injected light, highly intensive evanescent light is generated from the gap position of the opposite surface. Magnetic writing is carried out by applying a recording magnetic field from the pair of members to a medium heated by the evanescent light.
摘要翻译： 经由间隙彼此相对的一对构件通常用作渐逝光探针和写入磁头。 当间隙的间隔和宽度小于注入的光的波长λ时，从相对表面的间隙位置产生高度强烈的消逝光。 通过将记录磁场从一对构件施加到由渐逝光加热的介质来进行磁写入。
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90.发明授权Magnetic recording medium and magnetic recording/reproducing apparatus using the same 失效磁记录介质及使用其的磁记录/再现装置公开(公告)号：US06972923B2
公开(公告)日：2005-12-06
申请号：US10396514
申请日：2003-03-26
申请人： Junichi Akiyama , Akira Kikitsu , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda , Hisanori Aikawa
发明人： Junichi Akiyama , Akira Kikitsu , Tadashi Kai , Toshihiko Nagase , Tomoyuki Maeda , Hisanori Aikawa
CPC分类号： G11B5/66 , G11B5/59633 , G11B5/59683 , G11B5/667 , G11B5/74 , G11B5/82 , G11B2005/0029
摘要： A magnetic recording medium has a substrate, and a servo signal recording magnetic layer whose magnetization is oriented in a direction perpendicular to a surface thereof, a non-magnetic layer and a data recording magnetic layer, which are stacked on the substrate in the order mentioned. The servo signal recording magnetic layer has a coercivity higher than that of the data recording magnetic layer. The servo signal recording magnetic layer has servo tracks formed with a track pitch Tps, the servo tracks adjacent to each other in a track width direction being magnetized to opposite directions perpendicular to the film surface.
摘要翻译： 磁记录介质具有基板，磁化沿与其表面垂直的方向取向的伺服信号记录磁性层，非磁性层和数据记录磁性层，按照所述顺序堆叠在基板上 。 伺服信号记录磁性层的矫顽力高于数据记录磁性层的矫顽力。 伺服信号记录磁性层具有形成有磁道间距Tps的伺服磁道，在磁道宽度方向上彼此相邻的伺服磁道被磁化成垂直于膜表面的相反方向。
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