Fig. 3
Temperature of Hx independence at various current densities. T at which ξ = 0 versus current density j for 10 ns, 20 ns, 40 ns and 100 ns long voltage pulses. Fit to data of 100 ns long pulses used to obtain temperature \(T_{\xi = 0}^{j = 0}\) at which ξ = 0 in the limit of no heating by extrapolation of fit. Error bars reflect errors in \(T_{\xi = 0}^j\) obtained by fits to data (Fig. 2c and Supplementary Fig. 3-5)
