Reverse Monte Carlo-produced structural models of Ag-ion conducting glasses and crystals were investigated by using the bond-valence technique. Both the absolute ionic conductivity and the activation energy could be determined directly from the so-called pathway-volume of the structural models. That is, from the volume fraction of the percolating pathway cluster. This pathway-volume versus conductivity relationship was found to hold for glassy and crystalline systems; with Ag-ion conductivities differing by more than 11 orders of magnitude.

Determining Ionic Conductivity from Structural Models of Fast Ionic Conductors. S.Adams, J.Swenson: Physical Review Letters, 2000, 84[18], 4144-7