Electron Transport through a Molecular Conductor with Center-of-Mass Motion

Abstract

The linear conductance of a molecular conductor oscillating between two metallic leads is investigated numerically both for Hubbard interacting and noninteracting electrons. The molecule-leads tunneling barriers depend on the molecule displacement from its equilibrium position. The results present an interesting interference which leads to a conductance dip at the electron-hole symmetry point, that could be experimentally observable. It is shown that this dip is caused by the destructive interference between the purely electronic and phonon-assisted tunneling channels, which are found to carry opposite phases. When an internal vibrational mode is also active, the electron-hole symmetry is broken but a Fano-like interference is still observed.

References in corpus (20)

• Kondo Physics in a Single Electron Transistor
• A Tunable Kondo Effect in Quantum Dots
• Measurement of the conductance of a hydrogen molecule
• Driving current through single organic molecules
• Phonon effects in molecular transistors: Quantum and classical treatment
• Fano Resonances in Electronic Transport through a Single Electron Transistor
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Inelastic electron tunneling via molecular vibrations in single-molecule transistors
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Numerical Renormalization Group Study of the Anderson-Holstein Impurity Model
• Transport in Coupled Quantum Dots: Kondo Effect Versus Anti-Ferromagnetic Correlation
• Nonequilibrium Transport through a Kondo Dot: Decoherence Effects
• Quantum transport through a deformable molecular transistor
• Kondo resonance effect on persistent currents through a quantum dot in a mesoscopic ring
• Kondo resonances and Fano antiresonances in transport through quantum dots
• Mirages and many-body effects in quantum corrals
• Interference Effects in the Conductance of Multi-Level Quantum Dots
• Effects of signs in tunneling matrix elements on transmission zeros and phase
• Microscopic theory of vibronic dynamics in linear polyenes
• Phonon Rabi-assisted tunneling in diatomic molecules

Cited by in corpus (18)

• Molecular Transport Junctions: Vibrational Effects
• Applying Adaptive Time-Dependent DMRG to Calculate the Conductance of Strongly Correlated Nanostructures
• Phonon-assisted tunneling and two-channel Kondo physics in molecular junctions
• Transport through quantum dots: A combined DMRG and cluster-embedding study
• Electron-Phonon Correlation Effects in Molecular Transistors
• Spin-charge separation and simultaneous spin and charge Kondo effect
• Conductance of a molecule with a center of mass motion
• Kondo Shuttling in Nanoelectromechanical Single-Electron Transistor
• Quantum phase transitions in a charge-coupled Bose-Fermi Anderson model
• Slave boson theory for transport through magnetic molecules with vibronic states
• Time-dependent single electron tunneling through a shuttling nano-island
• Kondo resonance in an ac driven quantum dot subjected to finite bias
• Two-level Physics in a Model Metallic Break Junction
• Effects of electron-phonon coupling in the Kondo regime of a two-orbital molecule
• Temporal evolution of Seebeck coefficient in an ac driven strongly correlated quantum dot
• Phonon-assisted tunneling regimes in diatomic molecules
• Spin orbit interaction in nanotubes
• Kondo effect in oscillating molecules