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.

arXiv comment4 pages, 5 figures, submitted

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Cited by in corpus (22)

• Green function techniques in the treatment of quantum transport at the molecular scale
• Current noise in molecular junctions: effects of the electron-phonon interaction
• Controlling the conductance of molecular wires by defect engineering: a divide et impera approach
• Non-equilibrium electronic structure of interacting single-molecule nanojunctions: vertex corrections and polarization effects for the electron-vibron coupling
• Non-equilibrium inelastic electronic transport: Polarization effects and vertex corrections to the self-consistent Born approximation
• Vibration-induced inelastic effects in the electron transport through multisite molecular bridges
• Charge-memory polaron effect in molecular junctions
• Cooling a vibrational mode coupled to a molecular single-electron transistor
• Current-induced atomic motion, structural instabilities, and negative temperatures on molecule-electrode interfaces in electronic junctions
• First Principles Quantum Transport with Electron-vibration Interactions: A Maximally Localized Wannier Function Approach
• Quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator
• Non-Adiabatic Effects of Nuclear Motion in Quantum Transport of Electrons: A Self-Consistent Keldysh-Langevin Study
• Nonequilibrium Green's function theory for nonadiabatic effects in quantum electron transport
• Time-dependent quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator
• Non-equilibrium Green's function theory for non-adiabatic effects in quantum transport: inclusion of electron-electron interactions
• Nonadiabatic corrections to electric current in molecular junction due to nuclear motion at the molecule-electrode interfaces
• Functionality in single-molecule devices: Model calculations and applications of the inelastic electron tunneling signal in molecular junctions
• One-dimensional transport in hybrid metal-semiconductor nanotube systems
• Vibration-mediated correlation effects in the transport properties of a benzene molecule
• 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