Figure 4: Quantitative determination of intrinsic energy barrier for flow regime.
From: Two-barrier stability that allows low-power operation in current-induced domain-wall motion
(a) Depinning probability as a function of current (lower abscissa) and current density (upper abscissa) for various pulse durations tp: 5 ns (red), 6 ns (green), 8 ns (blue), 10 ns (magenta), 100 ns (dark yellow), 1 μs (navy), 10 μs (wine), 100 μs (olive), 1 ms (orange), 10 ms (violet) and 100 ms (pink). Each data point was determined from 10 measurements. Solid lines are the probability fitting curves. (b) 1/τ as a function of current I1/2. The τ and I1/2 are respectively the pulse duration and current that give P=1/2. The error bars correspond to 20/80% probabilities, and the red solid line is the fitting to 
, with A being a prefactor.
