Fig. 3: Diffusion coefficient of the individual species vs pressure.

Diffusion coefficients at a 2200 K and b 3000 K. (inset of b) Electrical conductivity at 2200 and 3000 K. The error bars are the uncertainties in the diffusion coefficients. The errors of the mean were determined by considering (i) different intervals of the time origin of the molecular dynamics steps and (ii) minor variation in slope of the straight line used to fit the mean squared displacement.