Electron and phonon drag in thermoelectric transport through coherent molecular conductors

Abstract

We study thermoelectric transport through a coherent molecular conductor connected to two electron and two phonon baths using the nonequilibrium Green's function method. We focus on the mutual drag between electron and phonon transport as a result of `momentum' transfer, which happens only when there are at least two phonon degrees of freedom. After deriving expressions for the linear drag coefficients, obeying the Onsager relation, we further investigate their effect on nonequilibrium transport. We show that the drag effect is closely related to two other phenomena: (1) adiabatic charge pumping through a coherent conductor; (2) the current-induced nonconservative and effective magnetic forces on phonons.

references added, submitted

References in corpus (25)

• Quantum thermal transport in nanostructures
• Inelastic transport theory from first-principles: methodology and applications for nanoscale devices
• Giant thermopower and figure of merit in single-molecule devices
• Optimal energy quanta to current conversion
• Thermopower of a Kondo-correlated quantum dot
• Inelastic scattering and local heating in atomic gold wires
• Modeling inelastic phonon scattering in atomic- and molecular-wire junctions
• Single mode heat rectifier: Controlling energy flow between electronic conductors
• Scattering theory of current-induced forces in mesoscopic systems
• Current-induced atomic dynamics, instabilities, and Raman signals: Quasi-classical Langevin equation approach
• Full counting statistics of vibrationally-assisted electronic conduction: transport and fluctuations of the thermoelectric efficiency
• Phonon-thermoelectric transistors and rectifiers
• Coupled electron and phonon transport in one-dimensional atomic junctions
• Inelastic effects in molecular junction transport: Scattering and self-consistent calculations for the Seebeck coefficient
• Thermodynamic and quantum bounds on nonlinear DC thermoelectric transport
• Strongly nonlinear thermovoltage and heat dissipation in interacting quantum dots
• Enhanced performance of joint cooling and energy production
• Scattering theory of adiabatic reaction forces due to out-of-equilibrium quantum environments
• Thermodynamics of the mesoscopic thermoelectric heat engine beyond the linear-response regime
• Vibrational cooling and thermoelectric response of nanoelectromechanical systems
• Current-induced forces and hot-spots in biased nano-junctions
• Thermoelectricity without absorbing energy from the heat sources
• Effects of electron-phonon interaction on thermal and electrical transport through molecular nano-conductors
• Seebeck Coefficients in Nanoscale Junctions: Effects of Electron-vibration Scattering and Local Heating
• Thermoelectric transport through a quantum nanoelectromechanical system and its backaction

Cited by in corpus (15)

• Fundamental aspects of steady-state conversion of heat to work at the nanoscale
• Thermoelectric efficiency of nanoscale devices in the linear regime
• Nonlocal quantum heat engines made of hybrid superconducting devices
• Thermopower of molecular junctions: Tunneling to hopping crossover in DNA
• Near-field three-terminal thermoelectric heat engine
• Real-time diagrammatic approach to current-induced forces: Application to quantum-dot based nanomotors
• Multitask quantum thermal machines and cooperative effects
• Inelastic thermoelectric transport and fluctuations in mesoscopic system
• Thermodynamics and steady state of quantum motors and pumps far from equilibrium
• Entropy current and efficiency of quantum machines driven by nonequilibrium incoherent reservoirs
• Quantum coherence effects on inelastic thermoelectric devices: From diodes to transistors
• Phonon-Driven Electron Scattering and Magnetothermoelectric Effect in Two-Dimensional Tin Selenide
• Current-induced forces in single-resonance systems
• Quantum thermocouples: nonlocal conversion and control of heat in nanostructures
• Nonequilibrium reservoir engineering of a biased coherent conductor for hybrid energy transport in nanojunctions