Simulation was used to determine self-diffusion coefficients and activation energies in liquid noble metals (table 2). The embedded atom method potentials for silver and gold, developed for solid-state simulations, were shown to produce plausible results for the liquid state. The simulated values of diffusion coefficients in the liquid state compare very well with the experimental and the calculated reported results. The calculated diffusion data obeyed the Arrhenius equation which permitted finding the pre-factor and the activation energy for liquid state diffusion. The deduced activation energies of self-diffusion were found to be close to the experimental values.

Study of Diffusion Coefficients in Liquid Noble Metals. Akhter, J.I., Ahmed, E., Ahmad, M.: Materials Chemistry and Physics, 2005, 93[2-3], 504-7