Magnetic Domain Wall Motion Device based on the Modulation of the Spin-Orbit Torque

摘要

The present invention provides a magnetic domain wall moving device. The magnetic domain wall moving element includes a ferromagnetic layer having vertical magnetic anisotropy; And a non-magnetic metal layer extending in contact with the ferromagnetic layer. Wherein the ferromagnetic layer includes first ferromagnetic regions disposed along the extending direction of the ferromagnetic layer and a second ferromagnetic region disposed between the adjacent pair of first ferromagnetic regions, and the spin torque coefficient of the first ferromagnetic region And the spin torque coefficient of the second ferromagnetic region are opposite to each other, and the magnetic domain wall generated at the interface between the first ferromagnetic region and the second ferromagnetic region moves by the in-plane current of the nonmagnetic metal layer.;