Patent ID: 11963461
Assignee: TDK CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 0:
1. A magnetic domain wall movement element comprising:
a substrate, a first ferromagnetic layer, a nonmagnetic layer, and a second ferromagnetic layer, wherein
the first ferromagnetic layer, the nonmagnetic layer, and the second ferromagnetic layer are laminated in this order, and the first ferromagnetic layer is provided on a side of the substrate from the second ferromagnetic layer,
in the magnetic domain wall movement element, a lamination direction is a direction of laminating the first ferromagnetic layer, the nonmagnetic layer, and the second ferromagnetic layer, a first direction is a direction along with a long axis of the first ferromagnetic layer in a plan view from the lamination direction, and a second direction is a direction along with a short axis of the first ferromagnetic layer in the plan view,
on a cross-section along the lamination direction and the second direction orthogonal to the first direction, a shortest width of the first ferromagnetic layer in the second direction is shorter than a width of the nonmagnetic layer in the second direction, and
a writing current flows along the first direction of the second ferromagnetic layer.