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:
Nov. 18, 2025
Filed:
Jan. 30, 2024
Tdk Corporation, Tokyo, JP;
Shinto Ichikawa, Tokyo, JP;
Tatsuo Shibata, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A domain wall movement element includes a reference layer, nonmagnetic layer, domain wall movement layer, and first and second magnetization fixed layers. The first layer is connected to the domain wall movement layer. The second layer is connected to the domain wall movement layer at a position different from the first in a first direction. The nonmagnetic layer is interposed between the reference layer and domain wall movement layer in a stacking direction. The nonmagnetic layer includes first and second regions. The first region includes an oxide of Mg or an oxide containing Mg and a nonmagnetic element other than Mg. The second region includes an oxide containing Mg and a nonmagnetic element. A concentration of the nonmagnetic element in the second region is higher than that of the first region by 0.1 atom % or more. The second region is discontinuous in a plane orthogonal to the stacking direction.