Charge transport through a flexible molecular junction

Article

Charge transport through a flexible molecular junction

Čížek, M.; Thoss, M.; Domcke, W.

Czech. J. Phys. 55(2), 189-202 (2005)

Abstract

Vibrationally inelastic electron transport through a flexible molecular junction is investigated. The study is based on a mechanistic model for a biphenyl molecule between two metal electrodes. Employing methods from electron-molecule scattering theory, which allow a numerically exact treatment, we study the effect of vibrational excitation on the transmission probability for different parameter regimes. The current-voltage characteristic is analyzed for different temperatures, based on a Landauer-type formula. Furthermore, the process of electron assisted tunneling between adjacent wells in the torsional potential of the molecule is discussed and the validity of approximate methods to describe the transmission probability is investigated.

Institute authors

Čížek, Martin

Supported by

GACR 202/03/D112 — Dynamics of molecular collisions with inclusion of electron continuum

BibTeX

@article{UTF65,
  author        = {Čížek, M. and Thoss, M. and Domcke, W.},
  title         = {{Charge transport through a flexible molecular junction}},
  journal       = {Czech. J. Phys.},
  publisher     = {INST PHYSICS ACAD SCI CZECH REPUBLIC},
  address       = {NA SLOVANCE 2, PRAGUE 182 21, CZECH REPUBLIC},
  volume        = {55},
  number        = {2},
  pages         = {189-202},
  year          = {2005},
  eprint        = {cond-mat/0411064},
  archivePrefix = {arXiv},
  url           = {http://utf.mff.cuni.cz/\textasciitilde{}cizek/naseclanky/2005\_ctd.pdf},
}