Figure 2: DW velocity v versus magnetic field H.

The DW velocity was taken by real-time measurements for [CoSiB/Pt]N nanowires with different number of layers N (=3, 6 and 9) and wire width w = 500 nm. The closed and open symbols indicate the DW velocities measured in positive and negative dc current density JDC = ±5.4 × 1011 A/m2, respectively. The data were plotted by averaging the measurements ~100 times.