公开(公告)号：US20230180629A1

公开(公告)日：2023-06-08

申请号：US17927469

申请日：2021-11-15

Applicant: TDK CORPORATION

Inventor： Kosuke HAMANAKA ,  Yohei SHIOKAWA ,  Minoru SANUKI

IPC: H10N52/85 ,  H10B61/00

CPC classification number: H10N52/85 ,  H10B61/22

Abstract: This magnetization rotational element includes a spin-orbit torque wiring, and a first ferromagnetic layer in contact with the spin-orbit torque wiring, in which the spin-orbit torque wiring includes a first layer, a second layer, and a third layer in order from a side closer to the first ferromagnetic layer, and a coefficient of linear expansion of a material forming the second layer is between a coefficient of linear expansion of a material forming the first layer and a coefficient of linear expansion of a material forming the third layer.

公开(公告)号：US20220216394A1

公开(公告)日：2022-07-07

申请号：US17141347

申请日：2021-01-05

Applicant: TDK CORPORATION

Inventor： Minoru OTA ,  Tatsuo SHIBATA ,  Minoru SANUKI

IPC: H01L43/02 ,  H01L27/22 ,  H01L43/10

Abstract: A magnetic domain wall moving element according to an embodiment includes: a magnetic recording layer, a ferromagnetic layer, and a non-magnetic layer arranged between the magnetic recording layer and the ferromagnetic layer, wherein the ferromagnetic layer contains an additive element dispersed therein, and the additive element is one or more of H, He, Ne, Ar, Kr, Xe, N, C, Ag, Cu, Hg, Au, Pb, Zn, and Bi.

公开(公告)号：US20200083430A1

公开(公告)日：2020-03-12

申请号：US16288317

申请日：2019-02-28

Applicant: TDK CORPORATION

Inventor： Tomoyuki SASAKI ,  Yohei SHIOKAWA ,  Minoru SANUKI

IPC: H01L43/02 ,  H01L43/08 ,  H01L43/10 ,  H01L27/22

Abstract: Provided are a spin-orbit-torque magnetization rotational element and a spin-orbit-torque magnetoresistance effect element capable of easily rotating or reversing magnetization of a ferromagnetic layer. The spin-orbit-torque magnetization rotational element includes spin-orbit torque wiring and a first ferromagnetic layer laminated on the spin-orbit torque wiring in a first direction, wherein the spin-orbit torque wiring includes a first region extending in a second direction, a second region extending in a third direction different from the second direction, and an intersection region where the first region and the second region intersect, and wherein the first ferromagnetic layer and the intersection region at least partially overlap in a plan view from the first direction.

公开(公告)号：US20210375682A1

公开(公告)日：2021-12-02

申请号：US17405834

申请日：2021-08-18

Applicant: TDK CORPORATION

Inventor： Yohei SHIOKAWA ,  Tomoyuki SASAKI ,  Tomomi KAWANO ,  Minoru SANUKI

IPC: H01L21/8239 ,  G11C11/16 ,  G11C11/18 ,  H01F10/32 ,  H01L27/105 ,  H01L29/82 ,  H01L43/04 ,  H01L43/08 ,  H01L43/10

Abstract: This spin current magnetization rotational element includes a first ferromagnetic metal layer for a magnetization direction to be changed, and a spin-orbit torque wiring extending in a second direction intersecting a first direction which is an orthogonal direction to a surface of the first ferromagnetic metal layer and configured to be joined to the first ferromagnetic metal layer, wherein the spin-orbit torque wiring has a structure in which a spin conduction layer joined to the first ferromagnetic metal layer and a spin generation layer joined to the spin conduction layer on a surface on a side opposite to the first ferromagnetic metal layer are laminated.

公开(公告)号：US20200335691A1

公开(公告)日：2020-10-22

申请号：US16807704

申请日：2020-03-03

Applicant: TDK CORPORATION

Inventor： Tomoyuki SASAKI ,  Yohei SHIOKAWA ,  Minoru SANUKI

IPC: H01L43/02 ,  H01F10/32

Abstract: A spin-orbit-torque magnetization rotational element and a spin-orbit-torque magnetoresistance effect element capable of easily rotating or reversing magnetization of a ferromagnetic layer. The spin-orbit-torque magnetization rotational element includes spin-orbit-torque wiring and a first ferromagnetic layer laminated on the spin-orbit-torque wiring in a first direction, wherein the spin-orbit-torque wiring includes a first region extending in a second direction, a second region extending in a third direction different from the second direction, and an intersection region where the first region and the second region intersect, and wherein the first ferromagnetic layer and the intersection region at least partially overlap in a plan view from the first direction.