TY - JOUR A1 - Novotný, Tomáš A1 - Belzig, Wolfgang T1 - Large-voltage behavior of charge transport characteristics in nanosystems with weak electron–vibration coupling JF - Beilstein Journal of Nanotechnology PY - 2015/// VL - 6 SP - 1853 EP - 1859 SN - 2190-4286 DO - 10.3762/bjnano.6.188 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.6.188 KW - electron-vibration interaction KW - full counting statistics KW - large-voltage behavior KW - molecular electronics N2 - We study analytically the Full Counting Statistics of the charge transport through a nanosystem consisting of a few electronic levels weakly coupled to a discrete vibrational mode. In the limit of large transport voltage bias the cumulant generating function can be evaluated explicitly based solely on the intuitive physical arguments and classical master equation description of the vibration mode. We find that for the undamped vibrational modes mutual dynamical interplay between electronic and vibronic degrees of freedom leads to strongly nonlinear (in voltage) transport characteristics of the nanosystem. In particular, we find that for large voltages the k-th cumulant of the current grows as V2k to be contrasted with the linear dependence in case of more strongly externally damped and thus thermalized vibrational modes. ER -