Vibration-induced correction to the current through a single molecule
Abstract
Description
We provide analytical results for the perturbative correction to the current-voltage relation through a vibrating molecule for weak electron-phonon coupling. The nonlinear conductance exhibits a step-like feature at $eV=\hbar ω_0$, where $ω_0$ is the vibration frequency. We establish criteria for the sign change of the step in the conductance (up or down). This transition turns out to be nonuniversal and is governed by essentially all system parameters.
4 pages, no figures, to appear in PRB, published version
4 pages, no figures, to appear in PRB, published version