公开(公告)号：US20130069185A1

公开(公告)日：2013-03-21

申请号：US13416724

申请日：2012-03-09

申请人： Daisuke SAIDA ,  Minoru Amano ,  Yuichi Ohsawa ,  Junichi Ito ,  Hiroaki Yoda

发明人： Daisuke SAIDA ,  Minoru Amano ,  Yuichi Ohsawa ,  Junichi Ito ,  Hiroaki Yoda

IPC分类号： H01L29/82

CPC分类号： H01F10/3286 ,  G11C11/16 ,  G11C11/161 ,  G11C11/1659 ,  H01F10/3236 ,  H01F10/329 ,  H01L43/08

摘要： According to one embodiment, a magnetic memory element includes a stacked body including first and second stacked units stacked with each other. The first stacked unit includes first and second ferromagnetic layers and a first nonmagnetic layer provided therebetween. The second stacked unit includes third and fourth ferromagnetic layers and a second nonmagnetic layer provided therebetween. Magnetization of the second and third ferromagnetic layers are variable. Magnetizations of the first and fourth ferromagnetic layers are fixed in a direction perpendicular to the layer surfaces. A cross-sectional area of the third ferromagnetic layer is smaller than a cross-sectional area of the first stacked unit when cut along a plane perpendicular to the stacking direction.

摘要翻译： 根据一个实施例，磁存储元件包括堆叠体，其包括彼此堆叠的第一和第二堆叠单元。 第一堆叠单元包括第一和第二铁磁层和设置在它们之间的第一非磁性层。 第二堆叠单元包括第三和第四铁磁层和设置在它们之间的第二非磁性层。 第二和第三铁磁层的磁化是可变的。 第一和第四铁磁层的磁化在垂直于层表面的方向固定。 当沿垂直于堆叠方向的平面切割时，第三铁磁层的横截面面积小于第一堆叠单元的横截面面积。

公开(公告)号：US20120243308A1

公开(公告)日：2012-09-27

申请号：US13227959

申请日：2011-09-08

申请人： Daisuke SAIDA ,  Minoru AMANO ,  Junichi ITO ,  Yuichi OHSAWA ,  Saori KASHIWADA ,  Chikayoshi KAMATA ,  Tadaomi DAIBOU

发明人： Daisuke SAIDA ,  Minoru AMANO ,  Junichi ITO ,  Yuichi OHSAWA ,  Saori KASHIWADA ,  Chikayoshi KAMATA ,  Tadaomi DAIBOU

IPC分类号： G11C11/15 ,  H01L29/82

CPC分类号： G11C11/161 ,  G11C11/1655 ,  G11C11/1659 ,  G11C11/1673 ,  G11C11/1675 ,  H01L27/228 ,  H01L43/08

摘要： According to one embodiment, a magnetic element includes first and second conductive layers, an intermediate interconnection, and first and second stacked units. The intermediate interconnection is provided between the conductive layers. The first stacked unit is provided between the first conductive layer and the interconnection, and includes first and second ferromagnetic layer and a first nonmagnetic layer provided between the first and second ferromagnetic layers. The second stacked unit is provided between the second conductive layer and the interconnection, and includes third and fourth ferromagnetic layers and a second nonmagnetic layer provided between the third and fourth ferromagnetic layers. A magnetization direction of the second ferromagnetic layer is determined by causing a spin-polarized electron and a magnetic field to act on the second ferromagnetic layer.

摘要翻译： 根据一个实施例，磁性元件包括第一和第二导电层，中间互连以及第一和第二堆叠单元。 中间互连设置在导电层之间。 第一层叠单元设置在第一导电层和互连之间，并且包括第一和第二铁磁层和设置在第一和第二铁磁层之间的第一非磁性层。 第二堆叠单元设置在第二导电层和互连之间，并且包括第三和第四铁磁层以及设置在第三和第四铁磁层之间的第二非磁性层。 通过使自旋极化电子和磁场作用于第二铁磁层来确定第二铁磁层的磁化方向。

公开(公告)号：US20120236633A1

公开(公告)日：2012-09-20

申请号：US13228040

申请日：2011-09-08

申请人： Daisuke SAIDA ,  Minoru AMANO ,  Junichi ITO ,  Yuichi OHSAWA ,  Saori KASHIWADA ,  Chikayoshi KAMATA ,  Tadaomi DAIBOU

发明人： Daisuke SAIDA ,  Minoru AMANO ,  Junichi ITO ,  Yuichi OHSAWA ,  Saori KASHIWADA ,  Chikayoshi KAMATA ,  Tadaomi DAIBOU

IPC分类号： G11C11/15 ,  G11B5/66

CPC分类号： G11B5/66 ,  G11C11/161 ,  H01L27/228 ,  H01L43/08

摘要： According to one embodiment, a magnetic recording element includes a stacked body. The stacked body includes a first and a second stacked unit. The first stacked unit includes first and second ferromagnetic layers and a first nonmagnetic layer. The first nonmagnetic layer is provided between the first and second ferromagnetic layers. The second stacked unit is stacked with the first stacked unit and includes third and fourth ferromagnetic layers and a second nonmagnetic layer. The fourth ferromagnetic layer is stacked with the third ferromagnetic layer. The second nonmagnetic layer is provided between the third and fourth ferromagnetic layers. An outer edge of the fourth ferromagnetic layer includes a portion outside an outer edge of the first stacked unit in a plane. A magnetization direction of the second ferromagnetic layer is determined by causing a spin-polarized electron and a rotating magnetic field to act on the second ferromagnetic layer.

摘要翻译： 根据一个实施例，磁记录元件包括堆叠体。 堆叠体包括第一和第二堆叠单元。 第一堆叠单元包括第一和第二铁磁层和第一非磁性层。 第一非磁性层设置在第一和第二铁磁层之间。 第二堆叠单元与第一堆叠单元堆叠并且包括第三和第四铁磁层和第二非磁性层。 第四铁磁层与第三铁磁层层叠。 第二非磁性层设置在第三和第四铁磁层之间。 第四铁磁层的外边缘包括平面内第一堆叠单元的外边缘外侧的部分。 通过使自旋极化电子和旋转磁场作用于第二铁磁层来确定第二铁磁层的磁化方向。

公开(公告)号：US20130249024A1

公开(公告)日：2013-09-26

申请号：US13601343

申请日：2012-08-31

申请人： Daisuke SAIDA ,  Minoru Amano ,  Junichi Ito

发明人： Daisuke SAIDA ,  Minoru Amano ,  Junichi Ito

IPC分类号： H01L43/06

CPC分类号： H01L43/08 ,  G11C11/161 ,  G11C11/1659 ,  H01L27/228 ,  H01L43/12

摘要： According to one embodiment, a magnetic memory element includes a stacked body and a conductive shield. The stacked body includes first and second stacked units. The first stacked unit includes first and second ferromagnetic layers and a first nonmagnetic layer. The first ferromagnetic layer has a fixed magnetization in a first direction. A magnetization direction of the second ferromagnetic layer is variable in a second direction. The first nonmagnetic layer is provided between the first and second ferromagnetic layers. The second stacked unit includes a third ferromagnetic layer stacked with the first stacked unit in a stacking direction of the first stacked unit. A magnetization direction of the third ferromagnetic layer is variable in a third direction. The conductive shield is opposed to at least a part of a side surface of the second stacked unit. An electric potential of the conductive shield is controllable.

摘要翻译： 根据一个实施例，磁存储元件包括堆叠体和导电屏蔽。 堆叠体包括第一和第二堆叠单元。 第一堆叠单元包括第一和第二铁磁层和第一非磁性层。 第一铁磁层在第一方向上具有固定的磁化强度。 第二铁磁层的磁化方向在第二方向上是可变的。 第一非磁性层设置在第一和第二铁磁层之间。 第二堆叠单元包括在第一堆叠单元的层叠方向上与第一堆叠单元堆叠的第三铁磁层。 第三铁磁层的磁化方向在第三方向上是可变的。 导电屏蔽与第二堆叠单元的侧表面的至少一部分相对。 导电屏蔽层的电位是可控的。

公开(公告)号：US20120061784A1

公开(公告)日：2012-03-15

申请号：US13299130

申请日：2011-11-17

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： H01L29/82

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

摘要： An example magnetic recording device includes a laminated body. The laminated body includes 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; a third ferromagnetic layer with a variable magnetization direction; and a fourth ferromagnetic layer with a magnetization substantially fixed in a second direction, wherein at least one of the first and second direction is generally perpendicular to the film plane. The magnetization direction of the second ferromagnetic layer is determinable in response to the orientation of a current, by passing the current in a direction generally perpendicular to the film plane of the layers of the laminated body and the magnetization of the third ferromagnetic layer is able to undergo precession by passing the current.

摘要翻译： 示例性磁记录装置包括层压体。 层叠体包括具有在第一方向上基本固定的磁化的第一铁磁层; 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; 具有可变磁化方向的第三铁磁层; 以及具有在第二方向上基本固定的磁化的第四铁磁层，其中所述第一和第二方向中的至少一个大致垂直于所述膜平面。 第二铁磁层的磁化方向可以通过使电流沿大致垂直于层叠体的层的膜平面的方向流过电流的方向来确定，并且第三铁磁层的磁化能够 通过传递目前进行进攻。