Cooperative STT and SOT switching in perpendicular magnetic tunnel junctions: Role of the pulse-end magnetization state
The study proposes a field-free switching scheme using combined spin-transfer torque (STT) and spin-orbit torque (SOT) to reverse magnetization in perpendicular magnetic tunnel junctions. It found that the success of ultrafast switching depends not just on applying enough torque, but critically on controlling the magnetization's state at the end of the pulse to minimize post-pulse relaxation.