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公开(公告)号:US20080130176A1
公开(公告)日:2008-06-05
申请号:US12019657
申请日:2008-01-25
IPC分类号: G11B5/33
CPC分类号: H01L43/08 , G11C11/16 , H01L27/222
摘要: A magnetoresistive effect element includes a nonmagnetic layer having mutually facing first and second surfaces. A reference layer is provided on the first surface and has a fixed magnetization direction. A magnetization variable layer is provided on the second surface, has variable magnetization direction, and has a planer shape including a rectangular part, a first projected part, and a second projected part. The rectangular part has mutually facing first and second longer sides and mutually facing first and second shorter sides. The first projected part projects from the first longer side at a position shifted from the center toward the first shorter side. The second projected part projects from the second longer side at a position shifted from the center toward the second shorter side.
摘要翻译: 磁阻效应元件包括具有相互面对的第一和第二表面的非磁性层。 参考层设置在第一表面上并具有固定的磁化方向。 磁化变化层设置在第二表面上,具有可变的磁化方向,并且具有包括矩形部分,第一突出部分和第二突出部分的平面形状。 矩形部分具有相互面对的第一和第二长边以及相互面对的第一和第二短边。 第一突出部从第一长边突出的位置从中心向第一短边移动。 第二突出部从第二长边突出的位置从中心向第二短边移动。
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公开(公告)号:US20100080050A1
公开(公告)日:2010-04-01
申请号:US12556883
申请日:2009-09-10
申请人: Jyunichi OZEKI , Naoharu SHIMOMURA , Sumio IKEGAWA , Tadashi KAI , Masahiko NAKAYAMA , Hisanori AIKAWA , Tatsuya KISHI , Hiroaki YODA , Eiji KITAGAWA , Masatoshi YOSHIKAWA
发明人: Jyunichi OZEKI , Naoharu SHIMOMURA , Sumio IKEGAWA , Tadashi KAI , Masahiko NAKAYAMA , Hisanori AIKAWA , Tatsuya KISHI , Hiroaki YODA , Eiji KITAGAWA , Masatoshi YOSHIKAWA
CPC分类号: H01L27/228 , B82Y25/00 , G11C11/161 , G11C11/5607 , H01F10/123 , H01F10/3254 , H01F10/3277 , H01F10/3286 , H01F10/329 , H01L43/08
摘要: A magnetic memory includes a magnetoresistive effect device comprising: a first ferromagnetic layer that has magnetic anisotropy in a direction perpendicular to a film plane thereof; a first nonmagnetic layer that is provided on the first ferromagnetic layer; a first reference layer that is provided on the first nonmagnetic layer, has magnetic anisotropy in a direction perpendicular to a film plane thereof, has magnetization antiparallel to a magnetization direction of the first ferromagnetic layer, and has a film thickness that is 1/5.2 to 1/1.5 times as large as a film thickness of the first ferromagnetic layer in the direction perpendicular to the film plane; a second nonmagnetic layer that is provided on the first reference layer; and a storage layer that is provided on the second nonmagnetic layer, has magnetic anisotropy in a direction perpendicular to a film plane thereof, and has a magnetization direction varied by spin-polarized electrons caused by flowing the current to the magnetoresistive effect device.
摘要翻译: 磁存储器包括磁阻效应器件,包括:在垂直于其膜平面的方向上具有磁各向异性的第一铁磁层; 设置在第一铁磁层上的第一非磁性层; 设置在第一非磁性层上的第一参考层在垂直于其膜平面的方向上具有磁各向异性,具有与第一铁磁层的磁化方向反平行的磁化,并且具有1 / 5.2〜 在第一铁磁层的垂直于膜平面的方向上的膜厚度的1/15倍; 设置在第一参考层上的第二非磁性层; 并且设置在第二非磁性层上的存储层在垂直于其膜平面的方向上具有磁各向异性,并且由于使电流流向磁阻效应器而引起的由自旋极化电子变化的磁化方向。
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3.
公开(公告)号:US20090244792A1
公开(公告)日:2009-10-01
申请号:US12396778
申请日:2009-03-03
申请人: Masahiko NAKAYAMA , Tadashi KAI , Sumio IKEGAWA , Hiroaki YODA , Tatsuya KISHI
发明人: Masahiko NAKAYAMA , Tadashi KAI , Sumio IKEGAWA , Hiroaki YODA , Tatsuya KISHI
IPC分类号: G11B5/33
CPC分类号: H01L43/08 , G11C11/161 , G11C11/1675 , H01L27/226
摘要: A magnetoresistance effect element includes: a first ferromagnetic layer having invariable magnetization perpendicular to a film plane; a second ferromagnetic layer having variable magnetization perpendicular to the film plane; a first nonmagnetic layer interposed between the first ferromagnetic layer and the second ferromagnetic layer; a third ferromagnetic layer provided on an opposite side of the second ferromagnetic layer from the first nonmagnetic layer, and having variable magnetization parallel to the film plane; and a second nonmagnetic layer interposed between the second and third ferromagnetic layers. Spin-polarized electrons are injected into the second ferromagnetic layer by flowing a current in the direction perpendicular to the film planes between the first and third ferromagnetic layers, precession movement is induced in the magnetization of the third ferromagnetic layer by injecting the spin-polarized electrons, and a microwave magnetic field of a frequency corresponding to the precession movement is applied to the second ferromagnetic layer.
摘要翻译: 磁阻效应元件包括:具有垂直于膜平面的不变磁化的第一铁磁层; 具有垂直于膜平面的可变磁化的第二铁磁层; 介于所述第一铁磁层和所述第二铁磁层之间的第一非磁性层; 第三铁磁层,其设置在所述第二铁磁层的与所述第一非磁性层相反的一侧上,并且具有与所述膜平面平行的可变磁化强度; 以及插入在第二和第三铁磁层之间的第二非磁性层。 通过在垂直于第一和第三铁磁层之间的膜平面的方向上流动电流,将旋转极化电子注入到第二铁磁层中,通过注入自旋极化电子在第三铁磁层的磁化中引起进动运动 并且将对应于进动运动的频率的微波磁场施加到第二铁磁层。
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公开(公告)号:US20150069558A1
公开(公告)日:2015-03-12
申请号:US14203249
申请日:2014-03-10
申请人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Hiroaki YODA , Hyung Suk LEE , Jae Geun OH , Choon Kun RYU , Min Suk LEE
发明人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Hiroaki YODA , Hyung Suk LEE , Jae Geun OH , Choon Kun RYU , Min Suk LEE
CPC分类号: H01L43/02 , G11C11/15 , G11C11/16 , G11C11/161 , G11C11/1659 , G11C11/5607 , H01L27/222 , H01L27/228 , H01L27/2463 , H01L43/08 , H01L43/10 , H01L43/12 , H01L45/04
摘要: According to one embodiment, a magnetic memory is disclosed. The memory includes a conductive layer containing a first metal material, a stacked body above the conductive layer, and including a first magnetization film containing a second metal material, a second magnetization film, and a tunnel barrier layer between the first magnetization film and the second magnetization film, and an insulating layer on a side face of the stacked body, and containing an oxide of the first metal material. The first magnetization film and/or the second magnetization film includes a first region positioned in a central portion, and a second region positioned in an edge portion and containing As, P, Ge, Ga, Sb, In, N, Ar, He, F, Cl, Br, I, Si, B, C, O, Zr, Tb, S, Se, or Ti.
摘要翻译: 根据一个实施例,公开了一种磁存储器。 该存储器包括一个包含第一金属材料的导电层,在该导电层上方的层叠体,并且包括一个第一磁化膜,该第一磁化膜含有第二金属材料,第二磁化膜和第一磁化膜与第二磁化膜之间的隧道势垒层 磁化膜和层叠体的侧面上的绝缘层,并且含有第一金属材料的氧化物。 第一磁化膜和/或第二磁化膜包括位于中心部分的第一区域和位于边缘部分中并且包含As,P,Ge,Ga,Sb,In,N,Ar,He的第二区域, F,Cl,Br,I,Si,B,C,O,Zr,Tb,S,Se或Ti。
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公开(公告)号:US20120099369A1
公开(公告)日:2012-04-26
申请号:US13342324
申请日:2012-01-03
申请人: Tadashi KAI , Katsuya Nishiyama , Toshihiko Nagase , Masatoshi Yoshikawa , Eiji Kitagawa , Tadaomi Daibou , Makoto Nagamine , Masahiko Nakayama , Naoharu Shimomura , Hiroaki Yoda , Kei Yakushiji , Shinji Yuasa , Hitoshi Kubota , Taro Nagahama , Akio Fukushima , Koji Ando
发明人: Tadashi KAI , Katsuya Nishiyama , Toshihiko Nagase , Masatoshi Yoshikawa , Eiji Kitagawa , Tadaomi Daibou , Makoto Nagamine , Masahiko Nakayama , Naoharu Shimomura , Hiroaki Yoda , Kei Yakushiji , Shinji Yuasa , Hitoshi Kubota , Taro Nagahama , Akio Fukushima , Koji Ando
CPC分类号: H01L43/10 , G11C11/161 , G11C11/1659 , G11C11/1675 , H01L27/228 , Y10S977/935
摘要: According to one embodiment, a magnetoresistive element includes a first magnetic layer with a variable magnetization and an easy-axis in a perpendicular direction to a film surface, a second magnetic layer with an invariable magnetization and an easy-axis in the perpendicular direction, and a first nonmagnetic layer between the first and second magnetic layers. The first magnetic layer comprises a ferromagnetic material including an alloy in which Co and Pd, or Co and Pt are alternately laminated on an atomically close-packed plane thereof. The first magnetic layer has C-axis directing the perpendicular direction. And a magnetization direction of the first magnetic layer is changed by a current flowing through the first magnetic layer, the first nonmagnetic layer and the second magnetic layer.
摘要翻译: 根据一个实施例,磁阻元件包括具有可变磁化的第一磁性层和在垂直于膜表面的垂直方向上的易轴,具有不变磁化的第二磁性层和垂直方向上的易轴,以及 在第一和第二磁性层之间的第一非磁性层。 第一磁性层包括铁磁材料,其包括Co和Pd或Co和Pt交替层压在原子紧密堆积的平面上的合金。 第一磁性层具有指向垂直方向的C轴。 并且通过流过第一磁性层,第一非磁性层和第二磁性层的电流改变第一磁性层的磁化方向。
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6.
公开(公告)号:US20150069552A1
公开(公告)日:2015-03-12
申请号:US14200894
申请日:2014-03-07
申请人: Yutaka HASHIMOTO , Tadashi KAI , Masahiko NAKAYAMA , Hiroaki YODA , Toshihiko NAGASE , Masatoshi YOSHIKAWA , Yasuyuki SONODA
发明人: Yutaka HASHIMOTO , Tadashi KAI , Masahiko NAKAYAMA , Hiroaki YODA , Toshihiko NAGASE , Masatoshi YOSHIKAWA , Yasuyuki SONODA
CPC分类号: H01L43/12 , G11C11/161 , H01L43/08
摘要: According to one embodiment, a magnetic memory device includes a magnetoresistance effect element having a structure in which a first magnetic layer, a nonmagnetic layer, a second magnetic layer, and a third magnetic layer are stacked, wherein the third magnetic layer comprises a first region and a plurality of second regions, and each of the second regions is surrounded by the first region, has conductivity, and has a greater magnetic property than the first region.
摘要翻译: 根据一个实施例,磁存储器件包括具有其中堆叠第一磁性层,非磁性层,第二磁性层和第三磁性层的结构的磁阻效应元件,其中第三磁性层包括第一区域 和多个第二区域,并且每个第二区域被第一区域包围,具有导电性,并且具有比第一区域更大的磁特性。
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公开(公告)号:US20150325785A1
公开(公告)日:2015-11-12
申请号:US14807267
申请日:2015-07-23
申请人: Masahiko NAKAYAMA , Masatoshi YOSHIKAWA , Tadashi KAI , Yutaka HASHIMOTO , Masaru TOKO , Hiroaki YODA , Jae Geun OH , Keum Bum LEE , Choon Kun RYU , Hyung Suk LEE , Sook Joo KIM
发明人: Masahiko NAKAYAMA , Masatoshi YOSHIKAWA , Tadashi KAI , Yutaka HASHIMOTO , Masaru TOKO , Hiroaki YODA , Jae Geun OH , Keum Bum LEE , Choon Kun RYU , Hyung Suk LEE , Sook Joo KIM
CPC分类号: H01L43/02 , H01L27/222 , H01L27/224 , H01L27/226 , H01L43/08 , H01L43/10 , H01L43/12
摘要: According to one embodiment, a magnetoresistive element is disclosed. The magnetoresistive element includes a reference layer, a tunnel barrier layer, a storage layer. The storage layer includes a first region and a second region provided outside the first region to surround the first region, the second region including element included in the first region and another element being different from the element. The magnetoresistive element further includes a cap layer including a third region and a fourth region provided outside the third region to surround the third region, the fourth region including an element included in the third region and the another element.
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公开(公告)号:US20150061053A1
公开(公告)日:2015-03-05
申请号:US14203198
申请日:2014-03-10
申请人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Toshihiko NAGASE , Hiroaki YODA
发明人: Masahiko NAKAYAMA , Tadashi KAI , Masaru TOKO , Toshihiko NAGASE , Hiroaki YODA
CPC分类号: H01L43/10 , H01L27/222 , H01L27/228 , H01L27/2463 , H01L29/82 , H01L43/08 , H01L43/12 , H01L45/06
摘要: According to one embodiment, a magnetoresistive element is disclosed. The element includes a first magnetic film, a second magnetic film, and a first nonmagnetic layer formed between the first magnetic film and the second magnetic film. The second magnetic film includes a first magnetic layer formed on a side of the first nonmagnetic layer, a second magnetic layer formed on a side opposite to the first nonmagnetic layer, and a second nonmagnetic layer formed between the first magnetic layer and the second magnetic layer and containing TiN.
摘要翻译: 根据一个实施例,公开了一种磁阻元件。 元件包括第一磁性膜,第二磁性膜和形成在第一磁性膜和第二磁性膜之间的第一非磁性层。 第二磁性膜包括形成在第一非磁性层一侧的第一磁性层,形成在与第一非磁性层相反的一侧的第二磁性层和形成在第一磁性层和第二磁性层之间的第二非磁性层 并含有TiN。
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公开(公告)号:US20140284742A1
公开(公告)日:2014-09-25
申请号:US13963762
申请日:2013-08-09
申请人: Kazuya SAWADA , Toshihiko NAGASE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Masahiko NAKAYAMA , Tadashi KAI , Hiroaki YODA
发明人: Kazuya SAWADA , Toshihiko NAGASE , Youngmin EEH , Koji UEDA , Daisuke WATANABE , Masahiko NAKAYAMA , Tadashi KAI , Hiroaki YODA
摘要: According to one embodiment, a magnetoresistive element includes first, second and third magnetic layers, and first and second nonmagnetic layers. The third magnetic layer has stack layers including a first stack layer close to the second magnetic layer, and a second stack layer far from the second magnetic layer. Each of the first and second stack layers includes a first layer made of a ferromagnetic material and a second layer made of a nonmagnetic material, and a first ratio of a film thickness of the first layer to that of the second layer in the first stack layer is higher than a second ratio of a film thickness of the first layer to that of the second layer in the second stack layer.
摘要翻译: 根据一个实施例,磁阻元件包括第一,第二和第三磁性层以及第一和第二非磁性层。 第三磁性层具有包括靠近第二磁性层的第一堆叠层和远离第二磁性层的第二堆叠层的堆叠层。 第一和第二堆叠层中的每一个包括由铁磁材料制成的第一层和由非磁性材料制成的第二层,并且第一层的第一层的膜厚度与第二层的膜厚度的第一比率 高于第二层的第一层的膜厚度与第二层的膜厚度的第二比率。
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公开(公告)号:US20150069557A1
公开(公告)日:2015-03-12
申请号:US14202802
申请日:2014-03-10
申请人: Masahiko NAKAYAMA , Masatoshi YOSHIKAWA , Tadashi KAI , Yutaka HASHIMOTO , Masaru TOKO , Hiroaki YODA , Jae Geun OH , Keum Bum LEE , Choon Kun RYU , Hyung Suk LEE , Sook Joo KIM
发明人: Masahiko NAKAYAMA , Masatoshi YOSHIKAWA , Tadashi KAI , Yutaka HASHIMOTO , Masaru TOKO , Hiroaki YODA , Jae Geun OH , Keum Bum LEE , Choon Kun RYU , Hyung Suk LEE , Sook Joo KIM
CPC分类号: H01L43/02 , H01L27/222 , H01L27/224 , H01L27/226 , H01L43/08 , H01L43/10 , H01L43/12
摘要: According to one embodiment, a magnetoresistive element is disclosed. The magnetoresistive element includes a reference layer, a tunnel barrier layer, a storage layer. The storage layer includes a first region and a second region provided outside the first region to surround the first region, the second region including element included in the first region and another element being different from the element. The magnetoresistive element further includes a cap layer including a third region and a fourth region provided outside the third region to surround the third region, the fourth region including an element included in the third region and the another element.
摘要翻译: 根据一个实施例,公开了一种磁阻元件。 磁阻元件包括参考层,隧道势垒层,存储层。 存储层包括第一区域和设置在第一区域外部以围绕第一区域的第二区域,第二区域包括包含在第一区域中的元素,而另一个元素不同于元件。 磁阻元件进一步包括盖层,该盖层包括第三区域和设置在第三区域外部以包围第三区域的第四区域,第四区域包括包括在第三区域中的元件和另一元件。
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