公开(公告)号：US20070228501A1

公开(公告)日：2007-10-04

申请号：US11725570

申请日：2007-03-20

申请人： Shiho Nakamura ,  Hirofumi Morise

发明人： Shiho Nakamura ,  Hirofumi Morise

IPC分类号： H01L43/00

CPC分类号： H01L43/10 ,  B82Y25/00 ,  G01R33/093 ,  G11C16/16 ,  H01F10/3227 ,  H01F10/3254 ,  H01F10/3286 ,  H01L27/222 ,  H01L27/228 ,  H01L43/08

摘要： A magnetic recording element according to an example of the present invention includes a magnetic free layer whose magnetization is variable in accordance with a current direction passing through a film and whose direction of easy axis of magnetization is a direction perpendicular to a film plane, a magnetic pinned layer whose magnetization is fixed to a direction perpendicular to the film plane, and a non-magnetic barrier layer between the magnetic free layer and the magnetic pinned layer. In the magnetic free layer, a relation between a saturated magnetization Ms (emu/cc) and an anisotropy field Han (Oe) satisfies Han>12.57 Ms, and Han

摘要翻译： 根据本发明实施例的磁记录元件包括磁化自由层，其磁化根据通过膜的电流方向是可变的，并且易磁化轴方向是垂直于膜平面的方向，磁性 其磁化固定到垂直于膜平面的方向上的固定层，以及在磁性自由层和磁性固定层之间的非磁性阻挡层。 在磁性自由层中，饱和磁化强度Ms（emu / cc）与各向异性场Han（Oe）之间的关系满足Han> 12.57 Ms，而Han <1.2 E 7 MS -1 +12.57 女士。

公开(公告)号：US20060002185A1

公开(公告)日：2006-01-05

申请号：US11213865

申请日：2005-08-30

申请人： Shiho Nakamura ,  Shigeru Haneda ,  Yuichi Ohsawa

发明人： Shiho Nakamura ,  Shigeru Haneda ,  Yuichi Ohsawa

IPC分类号： G11C11/14

CPC分类号： H01L43/08 ,  G11C11/15 ,  G11C11/16 ,  G11C11/5607 ,  H01L27/224 ,  H01L27/228

摘要： A magnetic cell comprises: a first ferromagnetic layer whose magnetization is substantially fixed in a first direction; a second ferromagnetic layer whose magnetization is substantially fixed in a second direction opposite to the first direction; a third ferromagnetic layer provided between the first and the second ferromagnetic layers, a direction of magnetization of the third ferromagnetic layer being variable; a first intermediate layer provided between the first and the third ferromagnetic layers; and a second intermediate layer provided between the second and the third ferromagnetic layers. The direction of magnetization of the third ferromagnetic layer can be determined under an influence of spin-polarized electrons upon the third ferromagnetic layer by passing a current between the first and the second ferromagnetic layers.

公开(公告)号：US06906949B1

公开(公告)日：2005-06-14

申请号：US10401865

申请日：2003-03-31

申请人： Shiho Nakamura ,  Shigeru Haneda ,  Hiroaki Yoda

发明人： Shiho Nakamura ,  Shigeru Haneda ,  Hiroaki Yoda

IPC分类号： G11C11/14 ,  G11C11/15 ,  G11C11/16 ,  H01F10/32 ,  H01L27/22 ,  H01L43/08

CPC分类号： H01L43/08 ,  B82Y25/00 ,  G11C11/15 ,  G11C11/16 ,  H01F10/3263 ,  H01F10/329 ,  H01L27/228

摘要： A magnetic element comprises a first magnetic reference part (A) including a first ferromagnetic substance pinned in magnetization (M1) substantially in a first direction, a second magnetic reference part (E) including a second ferromagnetic substance pinned in magnetization (M3) substantially in a second direction, and a magnetic recording part (C) provided between the first and second magnetic reference parts. The magnetic recording part includes a third ferromagnetic substance. A spin transfer intermediate part (B) is provided between the first magnetic reference part and the magnetic recording part. An intermediate part (D) is provided between the second magnetic reference part and the magnetic recording part. A magnetization (M2) of the third ferromagnetic substance can be directed in a direction parallel or anti-parallel to the first direction by passing a writing current between the first magnetic reference part and the magnetic recording part. A relative relation between the second direction and the direction of the magnetization of the third ferromagnetic substance can be detected by passing a sense current between the second magnetic reference part and the magnetic recording part.

摘要翻译： 磁性元件包括：第一磁性参考部分（A），包括基本上沿第一方向被钉扎在磁化（M 1）中的第一铁磁物质;第二磁性参考部分（E），包括在磁化（M 3）中被钉扎的第二铁磁性物质， 基本上在第二方向上的磁记录部分（C）和设置在第一和第二磁参考部分之间的磁记录部分（C）。 磁记录部分包括第三铁磁物质。 自旋转移中间部分（B）设置在第一磁参考部分和磁记录部分之间。 中间部分（D）设置在第二磁参考部分和磁记录部分之间。 第三铁磁性物质的磁化强度（M 2）可以通过使第一磁性参考部件和磁性记录部件之间的写入电流通过而在与第一方向平行或反平行的方向上被引导。 可以通过在第二磁参考部分和磁记录部分之间通过感测电流来检测第二方向与第三铁磁物质的磁化方向之间的相对关系。

公开(公告)号：US09019757B2

公开(公告)日：2015-04-28

申请号：US12880606

申请日：2010-09-13

申请人： Shiho Nakamura ,  Daisuke Saida ,  Hirofumi Morise ,  Tsuyoshi Kondo

发明人： Shiho Nakamura ,  Daisuke Saida ,  Hirofumi Morise ,  Tsuyoshi Kondo

IPC分类号： G11C11/16 ,  G11C11/14 ,  G01R33/12 ,  H01L27/22 ,  H01L29/66

CPC分类号： G01R33/1284 ,  G11C11/14 ,  G11C11/161 ,  H01L27/222 ,  H01L27/226 ,  H01L29/66984

摘要： A spin wave element includes a substrate, a multilayer, a detecting portion, and two or more input portions. The multilayer having a lamination direction thereof is formed on the substrate and includes a first ferromagnetic layer. The first ferromagnetic layer has magnetization whose direction is in the lamination direction. The detecting portion and the input portions are formed on the multilayer and separated from each other by a first nonmagnetic layer. In addition, a portion of an outer edge of the multilayer viewed from the lamination direction makes a portion of one ellipsoid. The detecting portion and one of the input portions are located on the long axis of the one ellipsoid. The portion of the one ellipsoid is located on a side of one of the input portions.

摘要翻译： 自旋波元件包括基板，多层，检测部分和两个或更多个输入部分。 具有层压方向的多层形成在基板上，并且包括第一铁磁层。 第一铁磁层具有方向在层叠方向上的磁化。 检测部分和输入部分形成在多层上并且通过第一非磁性层彼此分离。 此外，从层叠方向观察的多层的外边缘的一部分形成一个椭圆体的一部分。 检测部分和输入部分之一位于一个椭圆体的长轴上。 一个椭圆体的一部分位于一个输入部分的一侧。

公开(公告)号：US08917152B2

公开(公告)日：2014-12-23

申请号：US13487769

申请日：2012-06-04

申请人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura

发明人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura

IPC分类号： H01P1/203 ,  H01P1/215 ,  H03C1/34

CPC分类号： H01P1/20345 ,  H01P1/203 ,  H03C1/34

摘要： A spin wave device according to an embodiment includes: an input interconnect transmitting an input impulse signal; a multilayer film including a foundation layer; a first magnetic layer formed on the multilayer film and generating spin waves when receiving the input impulse signal, the spin waves propagating through the first magnetic layer; a plurality of input electrodes arranged in a straight line on the first magnetic layer, being connected to the input interconnect, and transmitting the input impulse signal to the first magnetic layer; and a plurality of sensing electrodes sensing the spin waves, being arranged on the first magnetic layer, and being located at different distances from one another from the straight line having the input electrodes arranged therein, and the following equation is satisfied: d=Vg×t0.

摘要翻译： 根据实施例的自旋波装置包括：输入互连件，其传输输入脉冲信号; 包括基础层的多层膜; 形成在所述多层膜上并在接收所述输入脉冲信号时产生自旋波的第一磁性层，所述自旋波通过所述第一磁性层传播; 多个输入电极，布置在第一磁性层上的直线上，连接到输入互连，并将输入脉冲信号传输到第一磁性层; 以及感测旋转波的多个感测电极，布置在第一磁性层上，并且与其中布置有输入电极的直线彼此不同的距离设置，满足以下等式：d = Vg× t0。

公开(公告)号：US08830742B2

公开(公告)日：2014-09-09

申请号：US13713482

申请日：2012-12-13

申请人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura

发明人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura

IPC分类号： G11C11/15 ,  G11C11/10 ,  G11C11/02 ,  G11C11/16 ,  G11C11/06 ,  G11C11/155

CPC分类号： G11C11/16 ,  G11C11/161

摘要： A magnetic memory according to an embodiment includes: a magnetic structure extending in a first direction and having a circular ring-like shape in cross-section in a plane perpendicular to the first direction; a nonmagnetic layer formed on an outer surface of the magnetic structure, the outer surface extending in the first direction; and at least one reference portion formed on part of a surface of the nonmagnetic layer, the surface being on the opposite side from the magnetic structure, the at least one reference portion containing a magnetic material.

摘要翻译： 根据实施例的磁存储器包括：在垂直于第一方向的平面中沿第一方向延伸并具有圆形环形形状的磁性结构， 形成在所述磁性结构的外表面上的非磁性层，所述外表面沿所述第一方向延伸; 以及形成在非磁性层的表面的一部分上的至少一个参考部分，所述表面位于与磁性结构相反的一侧，所述至少一个参考部分包含磁性材料。

公开(公告)号：US20120224416A1

公开(公告)日：2012-09-06

申请号：US13235664

申请日：2011-09-19

申请人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura ,  Yoshinari Kurosaki

发明人： Tsuyoshi Kondo ,  Hirofumi Morise ,  Shiho Nakamura ,  Yoshinari Kurosaki

IPC分类号： G11C11/16 ,  H01L29/82

CPC分类号： H01L27/228 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1673 ,  G11C11/1675 ,  H01L29/82 ,  H01L43/08

摘要： A magnetic memory includes a first magnetic layer, a second magnetic layer, a third magnetic layer, a first intermediate layer, a second intermediate layer, an insulator film, and an electrode. The third magnetic layer is provided between the first magnetic layer and the second magnetic layer in a first direction being perpendicular to the plane of both the first magnetic layer and the second magnetic layer. The insulator film is provided on the third magnetic layer in a second direction perpendicular to the first direction. The electrode is provided on the insulator film so that the insulator is sandwiched between the third magnetic layer and the electrode in the second direction. In addition, a positive voltage is applied to the electrode and a first current passes from the first magnetic layer to the second magnetic layer, thereby writing information to the second magnetic layer.

摘要翻译： 磁存储器包括第一磁性层，第二磁性层，第三磁性层，第一中间层，第二中间层，绝缘膜和电极。 第三磁性层在与第一磁性层和第二磁性层的平面垂直的第一方向上设置在第一磁性层和第二磁性层之间。 绝缘体膜在与第一方向垂直的第二方向上设置在第三磁性层上。 电极设置在绝缘膜上，使得绝缘体沿第二方向被夹在第三磁性层和电极之间。 此外，向电极施加正电压，并且第一电流从第一磁性层流到第二磁性层，从而将信息写入第二磁性层。

公开(公告)号：US08085582B2

公开(公告)日：2011-12-27

申请号：US12216918

申请日：2008-07-11

申请人： Shiho Nakamura ,  Hirofumi Morise ,  Satoshi Yanagi ,  Daisuke Saida ,  Akira Kikitsu

发明人： Shiho Nakamura ,  Hirofumi Morise ,  Satoshi Yanagi ,  Daisuke Saida ,  Akira Kikitsu

IPC分类号： G11C11/14 ,  G11C11/15 ,  G11C11/16 ,  G11C11/02

CPC分类号： G11C11/22 ,  G11B5/66 ,  G11C11/16 ,  G11C11/161 ,  G11C11/1675

摘要： A magnetic recording device includes: a laminated body including: a first ferromagnetic layer with a magnetization substantially fixed in a first direction; a second ferromagnetic layer with a variable magnetization direction; a first nonmagnetic layer disposed between the first ferromagnetic layer and the second ferromagnetic layer; and a third ferromagnetic layer with a variable magnetization direction. The magnetization direction of the second ferromagnetic layer is determinable in response to the orientation of a current, by allowing electrons spin-polarized by passing a current in a direction generally perpendicular to the film plane of the layers of the laminated body to act on the second ferromagnetic layer, and by allowing a magnetic field generated by precession of the magnetization of the third ferromagnetic layer to act on the second ferromagnetic layer.

摘要翻译： 磁记录装置包括：层叠体，包括：第一铁磁层，其具有基本上沿第一方向固定的磁化; 具有可变磁化方向的第二铁磁层; 设置在所述第一铁磁层和所述第二铁磁层之间的第一非磁性层; 和具有可变磁化方向的第三铁磁层。 第二铁磁层的磁化方向可以响应于电流的取向而被确定，通过使电子通过沿着大体上垂直于层叠体的层的膜平面的方向的电流进行自旋极化来作用于第二 铁磁层，并且通过允许由第三铁磁层的磁化进行而产生的磁场作用在第二铁磁层上。

公开(公告)号：US08077509B2

公开(公告)日：2011-12-13

申请号：US12320955

申请日：2009-02-10

申请人： Satoshi Yanagi ,  Yuichi Ohsawa ,  Shiho Nakamura ,  Daisuke Saida ,  Hirofumi Morise

发明人： Satoshi Yanagi ,  Yuichi Ohsawa ,  Shiho Nakamura ,  Daisuke Saida ,  Hirofumi Morise

IPC分类号： G11C11/15

CPC分类号： G11B25/04 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1675

摘要： A magnetic memory is provided with a memory cell. The memory cell includes a magnetic recording element, an interconnection to generate a radio-frequency current-induced magnetic field and a ground line. The magnetic recording element is provided with a first magnetic layer whose magnetization direction is substantially fixed, a magnetic recording layer whose magnetization direction is substantially reversed by spin-polarized electrons passing through the magnetic recording layer and a first nonmagnetic layer provided between the first magnetic layer and the magnetic recording layer. The interconnection is provided above the magnetic recording element to generate a radio-frequency current-induced magnetic field acting in a direction substantially perpendicular to a magnetization easy axis of the magnetic recording layer. The ground line is provided on a side opposite to the magnetic recording element with respect to the interconnection.

摘要翻译： 磁存储器设置有存储单元。 存储单元包括磁记录元件，用于产生射频电流感应磁场和接地线的互连。 磁记录元件设置有其磁化方向基本上固定的第一磁性层，其磁化方向基本上由通过磁记录层的自旋极化电子反转的磁记录层和设置在第一磁性层之间的第一非磁性层 和磁记录层。 互连设置在磁记录元件的上方，以产生沿与磁记录层的易磁化轴基本垂直的方向作用的射频电流感应磁场。 接地线相对于互连设置在与磁记录元件相对的一侧上。

公开(公告)号：US07931976B2

公开(公告)日：2011-04-26

申请号：US12285429

申请日：2008-10-03

申请人： Yuichi Ohsawa ,  Shiho Nakamura ,  Hirofumi Morise ,  Satoshi Yanagi ,  Daisuke Saida

发明人： Yuichi Ohsawa ,  Shiho Nakamura ,  Hirofumi Morise ,  Satoshi Yanagi ,  Daisuke Saida

IPC分类号： G11B5/39 ,  G01B7/14 ,  G01B7/24

CPC分类号： G11C11/1675 ,  G11C11/161 ,  G11C11/1659 ,  Y10T428/11 ,  Y10T428/1121 ,  Y10T428/1143 ,  Y10T428/115

摘要： A magnetic recording element includes a multilayer having a surface and a pair of electrodes. The multilayer has a first magnetic fixed layer whose magnetization is substantially fixed in a first direction substantially perpendicular to the surface. The multilayer also has a second magnetic fixed layer whose magnetization is substantially fixed in a second direction opposite to the first direction substantially perpendicular to the surface. A third magnetic layer is provided between the first and second magnetic layers. The direction of magnetization of the third ferromagnetic layer is variable. A first intermediate layer is provided between the first and the third magnetic layers. A second intermediate layer is provided between the second and the third magnetic layers. The pair of electrodes is capable of supplying an electric current flowing in a direction substantially perpendicular to the surface to the multilayer. The sectional area taken parallel to the surface at a thickness midpoint of the first magnetic layer is larger than that of the second magnetic layer.

摘要翻译： 磁记录元件包括具有表面和一对电极的多层。 多层具有第一磁性固定层，其磁化基本上在基本垂直于表面的第一方向固定。 多层还具有第二磁性固定层，其磁化基本上固定在与基本上垂直于表面的第一方向相反的第二方向上。 第三磁性层设置在第一和第二磁性层之间。 第三铁磁层的磁化方向是可变的。 第一中间层设置在第一和第三磁性层之间。 第二中间层设置在第二和第三磁性层之间。 该对电极能够将与表面大致垂直的方向流动的电流供给到多层。 在第一磁性层的厚度中点平行于表面截取的截面积大于第二磁性层的截面面积。