Effect of Dephasing on Electron Transport in a Molecular Wire: Green's Function Approach

Details Effect of Dephasing on Electron Transport in a Molecular Wire: Green's Function Approach Effect of Dephasing on Electron Transport in a Molecular Wire: Green's Function Approach

2010-11-09

arxiv.org/abs/1011.2033v2

Organic Electronics, Volume 12, Issue 6, June 2011, Pages 1017-1024

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 10 figures

Scientific paper

10.1016/j.orgel.2011.03.012

The effect of dephasing on electron transport through a benzene molecule is carefully examined using a phenomenological model introduced by B\"{u}ttiker. Within a tight-binding framework all the calculations are performed based on the Green's function formalism. We investigate the influence of dephasing on transmission probability and current-voltage characteristics for three different configurations ({\em ortho}, {\em meta} and {\em para}) of the molecular system depending on the locations of two contacting leads. The presence of dephasing provides a significant change in the spectral properties of the molecule and exhibits several interesting patterns that have so far remain unexplored.

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