Figure 5
Influence of field-like STT on the pulse duration of electric field to trigger the deterministic magnetization switching.
(a) The temporal evolution of the z-component of magnetization near the in-plane equilibrium position during the E-field action for various field-like torque strengths of ξ = 0, 0.02, 0.05 and 0.15. The cyan shadow area represents the positive mz. (b) The critical pulse duration τc for deterministic switching is plotted as a function of ξ. (c) Schematic of magnetization trajectory around the in-plane equilibrium position and the field-like torque involved in the influence of dm/dt. The magnetization trajectory is indicated by the blue curve. The torque T⊥, magnetization m and dm/dt are represented by brown, purple and cyan arrows, respectively. (d) The z-component of dm/dt at point A and point B for various ξ.
