Effective one-dimensionality of AC hopping conduction in the extreme disorder limit
arXiv:cond-mat/9601052 · doi:10.1103/PhysRevB.54.14884
Abstract
It is argued that in the limit of extreme disorder AC hopping is dominated by "percolation paths". Modelling a percolation path as a one-dimensional path with a sharp jump rate cut-off leads to an expression for the universal AC conductivity, that fits computer simulations in two and three dimensions better than the effective medium approximation.
6 postscript figures