公开(公告)号：US20240407176A1

公开(公告)日：2024-12-05

申请号：US18712336

申请日：2021-11-24

Applicant: TDK Corporation

Inventor： Yohei SHIOKAWA ,  Yugo ISHITANI ,  Kosuke HAMANAKA

IPC: H10B61/00 ,  H10N50/10 ,  H10N50/85

Abstract: A magnetization rotation element includes a spin-orbit torque wiring and a first ferromagnetic layer connected to the spin-orbit torque wiring, wherein the spin-orbit torque wiring has a first layer and a second layer, the first layer is closer to the first ferromagnetic layer than the second layer, the first layer has a negative spin Hall angle, and the second layer has a positive spin Hall angle.

公开(公告)号：US20240385263A1

公开(公告)日：2024-11-21

申请号：US18710841

申请日：2021-11-19

Applicant: TDK CORPORATION

Inventor： Yohei SHIOKAWA ,  Yugo ISHITANI ,  Kosuke HAMANAKA

IPC: G01R33/07 ,  H10B61/00 ,  H10N52/00

Abstract: This magnetization rotational element includes a spin-orbit torque wiring, a first ferromagnetic layer connected to the spin-orbit torque wiring, and a wiring connected to the spin-orbit torque wiring at a position different from that of the first ferromagnetic layer, wherein the spin-orbit torque wiring and the wiring each contain nitrogen, and the spin-orbit torque wiring and the wiring differ from each other in nitrogen content.

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：US20220406993A1

公开(公告)日：2022-12-22

申请号：US16981310

申请日：2020-01-24

Applicant: TDK CORPORATION

Inventor： Kosuke HAMANAKA ,  Tomoyuki SASAKI ,  Yohei SHIOKAWA

IPC: H01L43/04 ,  H01L27/22 ,  H01L43/06 ,  H01L43/10

Abstract: A spin element according to the present embodiment includes a wiring, a laminate including a first ferromagnetic layer laminated on the wiring, a first conductive part and a second conductive part with the first ferromagnetic layer therebetween in a plan view in a lamination direction, and an intermediate layer which is in contact with the wiring and is between the first conductive part and the wiring, wherein a diffusion coefficient of a second element including the intermediate layer with respect to a first element including the wiring is smaller than a diffusion coefficient of a third element constituting the first conductive part with respect to the first element or a diffusion coefficient of the third element including the first conductive part with respect to the second element constituting the wiring is smaller than a diffusion coefficient of the third element with respect to the first element constituting the intermediate layer.

公开(公告)号：US20220190234A1

公开(公告)日：2022-06-16

申请号：US17545467

申请日：2021-12-08

Applicant: TDK CORPORATION

Inventor： Tomoyuki SASAKI ,  Yohei SHIOKAWA ,  Yugo ISHITANI ,  Kosuke HAMANAKA ,  Eiji KOMURA

IPC: H01L43/04 ,  H01L27/22 ,  H01L43/06 ,  H01L43/10 ,  H01L43/14

Abstract: The magnetization rotation element includes: a spin-orbit torque wiring; and a first ferromagnetic layer which is stacked on the spin-orbit torque wiring, wherein the spin-orbit torque wiring includes a plurality of wiring layers, and wherein, in a cross section orthogonal to a length direction of the spin-orbit torque wiring, a product between a cross-sectional area and a resistivity of each of the wiring layers is larger in the wiring layer closer to the first ferromagnetic layer.