Nonequilibrium resonant spectroscopy of molecular vibrons

Details Nonequilibrium resonant spectroscopy of molecular vibrons Nonequilibrium resonant spectroscopy of molecular vibrons

2007-01-04

arxiv.org/abs/cond-mat/0701086v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures, submitted

Scientific paper

10.1103/PhysRevB.76.155430

Quantum transport through single molecules is essentially affected by molecular vibrations. We investigate the behavior of the prototype single-level model with intermediate electron-vibron coupling and arbitrary coupling to the leads. We have developed a theory which allows to explore this regime via the nonequilibrium Green function formalism. We show that the nonequilibrium resonant spectroscopy is able to determine the energies of molecular orbitals and the spectrum of molecular vibrations. Our results are relevant to scanning tunneling spectroscopy experiments, and demonstrate the importance of the systematic and self-consistent investigation of the effects of the vibronic dynamics onto the transport through single molecules.

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