Nonequilibrium resonant spectroscopy of molecular vibrons

Abstract

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.

4 pages, 5 figures, submitted

References in corpus (8)

• Molecular Transport Junctions: Vibrational Effects
• Franck-Condon blockade and giant Fano factors in transport through single molecules
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Inelastic electron tunneling via molecular vibrations in single-molecule transistors
• Vibrational sidebands and dissipative tunneling in molecular transistors
• Theory of the Franck-Condon blockade regime
• Inelastic scattering and local heating in atomic gold wires
• Current-induced nonequilibrium vibrations in single-molecule devices

Cited by in corpus (8)

• Current noise in molecular junctions: effects of the electron-phonon interaction
• Charge-memory polaron effect in molecular junctions
• Cooling a vibrational mode coupled to a molecular single-electron transistor
• Quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator
• Nonequilibrium Green's function theory for nonadiabatic effects in quantum electron transport
• Nanomechanical effects in an Andreev quantum dot
• Non-equilibrium renormalised contacts for transport in nanodevices with interaction: a quasi-particle approach
• Non-equilibrium transport with self-consistent renormalised contacts for a single-molecule nanodevice with electron-vibron interaction