Nonequilibrium electron transport in strongly correlated molecular junctions

Abstract

We investigate models of molecular junctions which constitute minimal Hamiltonians to account for zero-bias-anomaly and the satellite features of inelastic transport by molecular phonons. Through nonlinear transport calculations with the imaginary-time nonequilibrium formalism, a HOMO-LUMO model with Anderson-Holstein interaction is shown to produce co-tunneling conductance peak in the vicinity of Kondo resonance which is mediated by a re-emergent many-body resonance assisted by phonon excitations at bias equal to the phonon frequency. Destruction of the resonance leads to negative-differential-resistance in the sequential tunneling regime.

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Cited by in corpus (31)

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• Decoherence and lead induced inter-dot coupling in nonequilibrium electron transport through interacting quantum dots: A hierarchical quantum master equation approach
• Comparative study of theoretical methods for nonequilibrium quantum transport
• Iterative summation of path integrals for nonequilibrium molecular quantum transport
• Green's function methods for single molecule junctions
• Influence of vibrational modes on the quantum transport through a nano-device
• Hierarchical quantum master equation approach to electronic-vibrational coupling in nonequilibrium transport through nanosystems: Reservoir formulation and application to vibrational instabilities
• Bias-Controlled Selective Excitation of Vibrational Modes in Molecular Junctions: A Route Towards Mode-Selective Chemistry
• The Anderson--Holstein Model in Two Flavors of the Non--Crossing Approximation
• Anderson Model out of equilibrium: decoherence effects in transport through a quantum dot
• The formation of nonequilibrium steady states in interacting double quantum dots: When coherences dominate the charge distribution
• Vibrationally Induced Decoherence in Single-Molecule Junctions
• Effect of nonadiabatic electronic-vibrational interactions on the transport properties of single-molecule junctions
• Nonequilibrium transport through magnetic vibrating molecules
• Iterative path integral summation for nonequilibrium quantum transport
• Functional renormalization group study of the Anderson--Holstein model
• Imaginary-time formulation of steady-state nonequilibrium in quantum dot models
• Nonequilibrium density matrix for quantum transport: Hershfield approach as a McLennan-Zubarev form of the statistical operator
• Influence of phonon-assisted tunneling on the linear thermoelectric transport through molecular quantum dots
• Nonequilibrium Thermodynamics and Steady State Density Matrix for Quantum Open Systems
• Imaginary-time quantum many-body theory out of equilibrium I: Formal equivalence to Keldysh real-time theory and calculation of static properties
• Vibrationally dependent electron-electron interactions in resonant electron transport through single-molecule junctions
• Sharp negative differential resistance from vibrational mode softening in molecular junctions
• Nonequilibrium density matrix for simultaneous heat and charge steady-state transport in quantum open systems
• Electron transport in nanoscale junctions with local anharmonic modes
• Nonequilibrium distribution functions for quantum transport: universality and approximation for the steady state regime
• Exponential and power-law renormalization in phonon-assisted tunneling
• Negative differential conductance in molecular junctions: an overview of experiment and theory
• Dynamical coupling and negative differential resistance from interactions across the molecule-electrode interface in molecular junctions
• Nonequilibrium fluctuation-dissipation relations for one- and two-particle correlation functions in steady-state quantum transport
• Imaginary-time quantum many-body theory out of equilibrium II: Analytic continuation of dynamic observables and transport properties