Electronic Transport in Fullerene C20 Bridge Assisted by Molecular Vibrations

Abstract

The effect of molecular vibrations on electronic transport is investigated with the smallest fullerene C20 bridge, utilizing the Keldysh nonequilibrium Green's function techniques combined with the tight-binding molecular-dynamics method. Large discontinuous steps appear in the differential conductance when the applied bias-voltage matches particular vibrational energies. The magnitude of the step is found to vary considerably with the vibrational mode and to depend on the local electronic states besides the strength of electron-vibration coupling. On the basis of this finding, a novel way to control the molecular motion by adjusting the gate voltage is proposed.

arXiv comment9 pages, 4 figures, accepted for publication in Phys. Rev. Lett

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Cited by in corpus (21)

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• Generalization and applicability of the Landauer formula for non-equilibrium current in the presence of interactions
• 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
• Non-equilibrium quantum transport in fully interacting single-molecule nanojunctions
• Strong Correlation Effects in the Fullerene C20
• Conductance of a molecule with a center of mass motion
• Nonequilibrium transport in molecular junctions with strong electron-phonon interactions
• Nonequilibrium distribution functions for quantum transport: universality and approximation for the steady state regime
• Functionality in single-molecule devices: Model calculations and applications of the inelastic electron tunneling signal in molecular junctions
• Competition between structural distortion and magnetic moment formation in fullerene C${}_{20}$
• Many-body current formula and current conservation for non-equilibrium fully interacting nanojunctions
• Nanomechanical effects in an Andreev quantum dot
• Extended Hubbard model on a C${}_{20}$ molecule
• Relation between dispersion lines and conductance of telescoped armchair double-wall nanotubes analyzed using perturbation formulas and first-principles calculations
• 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