Fyzikální ústav Akademie věd ČR

Spin polarized carriers electrically injected into a magnet from an external polarizer can exert a spin transfer torque (STT) whose physical origin is a non-relativistic angular momentum transfer. The phenomenon belongs to the area of spintronics research focusing on the manipulation of magnetic moments by electric fields. A current induced spin-orbit torque (SOT) is a distinct relativistic phenomenon in which magnetization dynamics is induced in a uniform spin-orbit coupled ferromagnet in the absence of the external polarizer.