Vibration-mediated correlation effects in the transport properties of a benzene molecule

TL;DR

This paper presents a theoretical analysis of how vibrational and electronic interactions influence the transport properties of a benzene molecule, providing insights into nonlinear current-voltage behavior observable via spectroscopy.

Contribution

It introduces an analytic expression for current considering vibrational-electronic coupling in benzene, enhancing understanding of vibrational effects on molecular transport.

Findings

Derived an explicit formula for current with vibrational interactions.

Explained nonlinear current-voltage characteristics.

Linked theoretical results to experimental spectroscopy observations.

Abstract

We theoretically analyze correlation effects on the transport properties of a benzene molecule that are mediated by interactions between the motion of the nuclei and the transmitted charge. We focus on the lowest-lying molecular vibrational mode which allows us to derive an analytic expression for the current. The results provide transparent interpretations of various features of the highly nonlinear current-voltage characteristics, which is experimentally accessible through resonant inelastic electron-tunneling spectroscopy.