Coulomb singularity effects in tunnelling spectroscopy of individual impurities
arXiv:cond-mat/0209212 · doi:10.1134/1.1520623
Abstract
Non-equilibrium Coulomb effects in resonant tunnelling processes through deep impurity states are analyzed. It is shown that Coulomb vertex corrections to the tunnelling transfer amplitude lead to a power-law singularity in current- voltage characteristics
7 pages, 2 figures