Research
Articles
Autoresonant magnetization switching by spin-orbit torques
Category : International Journal Editor : G. Go, S.-J. Lee, and K.-J. Lee Published Date : 2017.05.02 Publications : Phys. Rev. B
Autoresonance is a self-sustained resonance mechanism due to a driving force whose frequency monotonically varies with time. We theoretically show that the autoresonance mechanism allows an efficient switching of perpendicular magnetization by spin-orbit spin-transfer torques. We find that a threshold current for the autoresonant switching can be much smaller than that of conventional spin-orbit torque switching driven by a DC current. Moreover, the suggested scheme allows fully deterministic switching without the help of any external field.
