The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Feb. 22, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Tohru Oikawa, Tokyo, JP;
Tomoyuki Sasaki, Tokyo, JP;
Yohei Shiokawa, Tokyo, JP;
Tatsuo Shibata, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 10/32 (2006.01); H01L 43/10 (2006.01); G11C 11/16 (2006.01); H01L 43/02 (2006.01);
U.S. Cl.
CPC ...
H01F 10/329 (2013.01); G11C 11/161 (2013.01); H01F 10/3254 (2013.01); H01L 43/02 (2013.01); H01L 43/10 (2013.01);
Abstract
A magnetization rotational element includes a ferromagnetic metal layer, and a spin-orbit torque wiring extending in a first direction intersecting a lamination direction of the ferromagnetic metal layer and having the ferromagnetic metal layer positioned on one surface thereof, in which a direction of spin injected from the spin-orbit torque wiring into the ferromagnetic metal layer intersects a magnetization direction of the ferromagnetic metal layer, and a damping constant of the ferromagnetic metal layer is larger than 0.01.