公开(公告)号：US07898774B2

公开(公告)日：2011-03-01

申请号：US11980678

申请日：2007-10-31

申请人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masashi Sahashi

发明人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masashi Sahashi

IPC分类号： G11B5/39

CPC分类号： H01L43/08 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/3906 ,  G11B5/3909 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/1936 ,  H01F10/3254 ,  H01F10/3259 ,  H01F10/3272 ,  H01F10/3281 ,  H01F41/305

摘要： A spin valve type magnetoresistive effect element for vertical electric conduction includes a magnetoresistive effect film in which a resistance adjustment layer made of a material containing conductive carriers not more than 1022/cm3 is inserted. Thus the resistance value of a portion in change of spin-relied conduction is raised to an adequate value, thereby to increase the resistance variable amount.

摘要翻译： 用于垂直导电的自旋阀型磁阻效应元件包括一个磁阻效应膜，其中插入由含有不大于1022 / cm3的导电载体的材料制成的电阻调节层。 因此，将自旋依赖导通变化的部分的电阻值提高到适当的值，从而增加电阻变化量。

公开(公告)号：US20060164764A1

公开(公告)日：2006-07-27

申请号：US11389175

申请日：2006-03-27

申请人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

发明人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： H01L43/08 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3133 ,  G11B5/3143 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3272 ,  Y10T428/1114

摘要： There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. In a magnetoresistance effect element wherein a sense current is caused to flow in a direction perpendicular to the plane of the film, a resistance regulating layer is provided in at least one of a pinned layer, a free layer and an non-magnetic intermediate layer. The resistance regulating layer contains, as a principal component, an oxide, a nitride, a fluoride, a carbide or a boride. The resistance regulating layer may be a continuous film or may have pin holes. Thus, it is possible to provide a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers, while effectively utilizing the scattering effect depending on spin.

公开(公告)号：US07046489B2

公开(公告)日：2006-05-16

申请号：US11080485

申请日：2005-03-16

申请人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

发明人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

IPC分类号： G11B5/33

CPC分类号： H01L43/08 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3133 ,  G11B5/3143 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3272 ,  Y10T428/1114

摘要： There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. In a magnetoresistance effect element wherein a sense current is caused to flow in a direction perpendicular to the plane of the film, a resistance regulating layer is provided in at least one of a pinned layer, a free layer and an non-magnetic intermediate layer. The resistance regulating layer contains, as a principal component, an oxide, a nitride, a fluoride, a carbide or a boride. The resistance regulating layer may be a continuous film or may have pin holes. Thus, it is possible to provide a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers, while effectively utilizing the scattering effect depending on spin.

公开(公告)号：US06937446B2

公开(公告)日：2005-08-30

申请号：US09981987

申请日：2001-10-19

申请人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

发明人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda ,  Katsuhiko Koui ,  Masatoshi Yoshikawa ,  Hitoshi Iwasaki ,  Masashi Sahashi ,  Masayuki Takagishi

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： H01L43/08 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3133 ,  G11B5/3143 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3272 ,  Y10T428/1114

摘要： There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. In a magnetoresistance effect element wherein a sense current is caused to flow in a direction perpendicular to the plane of the film, a resistance regulating layer is provided in at least one of a pinned layer, a free layer and an non-magnetic intermediate layer. The resistance regulating layer contains, as a principal component, an oxide, a nitride, a fluoride, a carbide or a boride. The resistance regulating layer may be a continuous film or may have pin holes. Thus, it is possible to provide a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers, while effectively utilizing the scattering effect depending on spin.

摘要翻译： 提供了一种具有适当的电阻值的实用磁阻效应元件，其可以被敏化并且具有少量的要控制的磁性层，以及使用该电阻的磁头和磁记录和/或再现系统。 在使感应电流沿与膜的平面垂直的方向流动的磁阻效应元件中，电阻调节层设置在被钉扎层，自由层和非磁性中间层中的至少一个中。 电阻调节层含有氧化物，氮化物，氟化物，碳化物或硼化物作为主要成分。 电阻调节层可以是连续的膜或者可以具有针孔。 因此，可以提供具有适当的电阻值的实用的磁阻效应元件，其可以被敏化并且具有少量的磁性层，同时有效地利用依赖于自旋的散射效应。

公开(公告)号：US20050152077A1

公开(公告)日：2005-07-14

申请号：US11072270

申请日：2005-03-07

申请人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Yuzo Kamiguchi ,  Hitoshi Iwasaki ,  Masashi Sahashi

发明人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Yuzo Kamiguchi ,  Hitoshi Iwasaki ,  Masashi Sahashi

IPC分类号： G11B5/012 ,  G11B5/39 ,  H01F10/32 ,  H01L43/10

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/012 ,  G11B5/3903 ,  G11B5/3906 ,  G11C11/16 ,  H01F10/324 ,  H01F10/3268 ,  H01L43/10 ,  Y10T428/1107 ,  Y10T428/1121 ,  Y10T428/1129 ,  Y10T428/1143 ,  Y10T428/115 ,  Y10T428/1171 ,  Y10T428/1193 ,  Y10T428/12465 ,  Y10T428/12868 ,  Y10T428/12917 ,  Y10T428/12951 ,  Y10T428/265 ,  Y10T428/32

摘要： A magnetoresistive device includes a magnetization pinned layer, a magnetization free layer, a nonmagnetic intermediate layer formed between the magnetization pinned layer and the magnetization free layer, and electrodes allowing a sense current to flow in a direction substantially perpendicular to the plane of the stack including the magnetization pinned layer, the nonmagnetic intermediate layer and the magnetization free layer. At least one of the magnetization pinned layer and the magnetization free layer is substantially formed of a binary or ternary alloy represented by the formula FeaCobNic (where a+b+c=100 at %, and a≦75 at %, b≦75 at %, and c≦63 at %), or formed of an alloy having a body-centered cubic crystal structure.

摘要翻译： 磁阻装置包括磁化固定层，磁化自由层，形成在磁化固定层和磁化自由层之间的非磁性中间层，以及允许感测电流在基本垂直于堆叠平面的方向上流动的电极，包括 磁化钉扎层，非磁性中间层和无磁化层。 磁化固定层和无磁化层中的至少一个基本上由二元或三元合金形成，由二元或三元合金表示，其由式Fe / SUB>（其中a + b + c = 100at％，a≤75at％，b <= 75at％，c <= 63at％），或者由具有体心立方 晶体结构。

公开(公告)号：US07443004B2

公开(公告)日：2008-10-28

申请号：US11283873

申请日：2005-11-22

申请人： Hiromi Yuasa ,  Yuzo Kamiguchi ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Tomohiko Nagata ,  Takeo Sakakubo ,  Masashi Sahashi

发明人： Hiromi Yuasa ,  Yuzo Kamiguchi ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Tomohiko Nagata ,  Takeo Sakakubo ,  Masashi Sahashi

IPC分类号： H01L29/82

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/00 ,  G11B5/3903 ,  G11B2005/3996 ,  H01F10/30 ,  H01F10/3227 ,  H01F10/3272 ,  H01F10/3295 ,  H01L43/08 ,  H01L43/10

摘要： In a spin valve type element, an interface insertion layer (32, 34) of a material exhibiting large spin-dependent interface scattering is inserted in a location of a magnetically pinned layer (16) or a magnetically free layer (20) closer to a nonmagnetic intermediate layer (18). A nonmagnetic back layer (36) may be additionally inserted as an interface not in contact with the nonmagnetic intermediate layer to increase the output by making use of spin-dependent interface scattering along the interface between the pinned layer and the nonmagnetic back layer or between the free layer and the nonmagnetic back layer.

摘要翻译： 在自旋阀型元件中，将表现出大的自旋相关界面散射的材料的界面插入层（32,34）插入到更靠近磁性固定层（16）或磁性层（20）的位置 非磁性中间层（18）。 可以另外插入非磁性背层（36）作为不与非磁性中间层接触的界面，以通过利用沿被钉扎层和非磁性背层之间的界面处的自旋相关界面散射来增加输出， 自由层和非磁背层。

公开(公告)号：US20060067017A1

公开(公告)日：2006-03-30

申请号：US11282659

申请日：2005-11-21

申请人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masashi Sahashi

发明人： Hiromi Yuasa ,  Masatoshi Yoshikawa ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masashi Sahashi

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： H01L43/08 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/3906 ,  G11B5/3909 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/1936 ,  H01F10/3254 ,  H01F10/3259 ,  H01F10/3272 ,  H01F10/3281 ,  H01F41/305

摘要： A spin valve type magnetoresistive effect element for vertical electric conduction includes a magnetoresistive effect film in which a resistance adjustment layer made of a material containing conductive carriers not more than 1022/cm3 is inserted. Thus the resistance value of a portion in change of spin-relied conduction is raised to an adequate value, thereby to increase the resistance variable amount.

摘要翻译： 用于垂直导电的自旋阀型磁阻效应元件包括磁阻效应膜，其中由含有导电载体的材料制成的电阻调节层不大于10/22/3 / >被插入。 因此，将自旋依赖导通变化的部分的电阻值提高到适当的值，从而增加电阻变化量。

公开(公告)号：US07483245B2

公开(公告)日：2009-01-27

申请号：US12042166

申请日：2008-03-04

申请人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda

发明人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B2005/3996 ,  G11C11/15

摘要： There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. In a magnetoresistance effect element wherein a sense current is caused to flow in a direction perpendicular to the plane of the film, if a pinned layer and a free layer have a stacked construction of a magnetic layer and a non-magnetic layer or a stacked construction of a magnetic layer and a magnetic layer, it is possible to provide a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers, while effectively utilizing the scattering effect depending on spin.

摘要翻译： 提供了一种具有适当的电阻值的实用磁阻效应元件，其可以被敏化并且具有少量的要控制的磁性层，以及使用该电阻的磁头和磁记录和/或再现系统。 在其中使感应电流在垂直于膜的平面的方向上流动的磁阻效应元件中，如果被钉扎层和自由层具有磁性层和非磁性层的层叠结构或堆叠结构 的磁性层和磁性层，可以提供具有适当的电阻值的实用的磁阻效应元件，其可以被敏化并且具有少量的磁性层，同时有效地利用依赖于旋转的散射效应 。

公开(公告)号：US07359162B2

公开(公告)日：2008-04-15

申请号：US10970278

申请日：2004-10-22

申请人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda

发明人： Yuuzo Kamiguchi ,  Hiromi Yuasa ,  Tomohiko Nagata ,  Hiroaki Yoda

IPC分类号： G11B5/39 ,  G01R33/02

CPC分类号： B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B2005/3996 ,  G11C11/15

摘要： There is provided a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers to be controlled, and a magnetic head and magnetic recording and/or reproducing system using the same. In a magnetoresistance effect element wherein a sense current is caused to flow in a direction perpendicular to the plane of the film, if a pinned layer and a free layer have a stacked construction of a magnetic layer and a non-magnetic layer or a stacked construction of a magnetic layer and a magnetic layer, it is possible to provide a practical magnetoresistance effect element which has an appropriate value of resistance, which can be sensitized and which has a small number of magnetic layers, while effectively utilizing the scattering effect depending on spin.

摘要翻译： 提供了一种具有适当的电阻值的实用磁阻效应元件，其可以被敏化并且具有少量的要控制的磁性层，以及使用该磁阻的磁头和磁记录和/或再现系统。 在其中使感应电流在垂直于膜的平面的方向上流动的磁阻效应元件中，如果被钉扎层和自由层具有磁性层和非磁性层的层叠结构或堆叠结构 的磁性层和磁性层，可以提供具有适当的电阻值的实用的磁阻效应元件，其可以被敏化并且具有少量的磁性层，同时有效地利用依赖于旋转的散射效应 。

公开(公告)号：US07027273B2

公开(公告)日：2006-04-11

申请号：US10968983

申请日：2004-10-21

申请人： Masatoshi Yoshikawa ,  Masayuki Takagishi ,  Yuzo Kamiguchi ,  Hiromi Yuasa

发明人： Masatoshi Yoshikawa ,  Masayuki Takagishi ,  Yuzo Kamiguchi ,  Hiromi Yuasa

IPC分类号： G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3929 ,  G11B5/3954 ,  G11B2005/0029 ,  G11B2005/3996

摘要： A magnetoresistive head has a magnetoresistive film including first and second magnetization free layers, an intermediate layer sandwiched between the first and second magnetization free layers, an underlayer and a protective layer, which are stacked in the order of the underlayer, the first magnetization free layer, the intermediate layer, the second magnetization free layer and the protective layer and arranged to be substantially perpendicular to the air-bearing surface, and a first electrode connected with the underlayer and a second electrode connected with the protective layer, the electrodes allowing a current to flow in a direction substantially perpendicular to the plane. The intermediate layer includes a stacked film of a metal layer/an oxide layer, a stacked film of a metal layer/a nitride layer, a sandwich film of a metal layer/an oxide layer/a metal layer, or a sandwich film of a metal layer/a nitride layer/a metal layer.

摘要翻译： 磁阻头具有包括第一和第二磁化自由层的磁阻膜，夹在第一和第二磁化自由层之间的中间层，下层和保护层，其以下层的顺序层叠，第一磁化自由层 中间层，第二磁化自由层和保护层，并且布置成基本上垂直于空气轴承表面，并且与底层连接的第一电极和与保护层连接的第二电极，电极允许电流 以基本垂直于该平面的方向流动。 中间层包括金属层/氧化物层的叠层膜，金属层/氮化物层的叠层膜，金属层/氧化物层/金属层的夹层膜，或者是 金属层/氮化物层/金属层。