Spin-orbit torque (SOT) effective fields and SOT-induced switching in perpendicularly magnetized multilayers

Abstract

Spin-orbit torque (SOT) is an electrical-driven phenomenon in which the magnetization of a ferromagnetic material can be switched by the momentum transfer of the diffused accumulated spins at the heavy metal (HM)/ferromagnet (FM) interface, when applying an electric current through the HM layer. The SOT effect is highly attractive from application viewpoint, specifically for faster magnetization switching