Figure 3
Direct observation of SOT-driven DW motion in Ta/Pt/Co/Pt/Co/Ta structure using Kerr imaging technique. (a) Initial magnetization state in −z-direction. (b) DW motion after the application of a 15 ns pulse, the DW propagates 8 µm distance and reaches the first Hall probe (c) application of 18 ns pulse, DW depins from the Hall probe and propagates a distance of 10 µm and (d) application of 50 ns pulse, DW reaches second Hall probe propagating a distance of 25 µm.
