Nonlinear conductivity of diffusive normal-metal contacts
arXiv:cond-mat/0106526 · doi:10.1016/0375-9601(94)90832-X
Abstract
Metal microbridges with a high impurity content and shorter than the energy relaxation length are considered. Their conductance is calculated with allowance made for the Coulomb electron-electron interaction. It is shown that nonequilibrium electrons in the microbridges gives rise to a nonlinear current-voltage characteristic (published in Physics Letters A, 1994).
3 pages, 2 eps figures