Superconducting transport through a vibrating molecule

Abstract

Nonequilibrium electronic transport through a molecular level weakly coupled to a single coherent phonon/vibration mode has been studied for superconducting leads. The Keldysh Green function formalism is used to compute the current for the entire bias voltage range. In the subgap regime, Multiple Andreev Reflection (MAR) processes accompanied by phonon emission cause rich structure near the onset of MAR channels, including an even-odd parity effect that can be interpreted in terms of an inelastic MAR ladder picture. Thereby we establish a connection between the Keldysh formalism and the Landauer scattering approach for inelastic MAR.

5 pages, 5 figures, version contains now more details, accepted by PRB

References in corpus (7)

• Franck-Condon blockade and giant Fano factors in transport through single molecules
• Quantum supercurrent transistors in carbon nanotubes
• Vibrational sidebands and dissipative tunneling in molecular transistors
• Inelastic scattering and local heating in atomic gold wires
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Quantum transport through a deformable molecular transistor
• Josephson current through a molecular transistor in a dissipative environment

Cited by in corpus (8)

• Vibration-induced correction to the current through a single molecule
• Spectrum of Andreev Bound States in a Molecule Embedded Inside a Microwave-Excited Superconducting Junction
• Transport through a molecular quantum dot in the polaron crossover regime
• Superconducting non-equilibrium transport through a weakly interacting quantum dot
• Multiple Andreev reflections in a quantum dot coupled to superconductors: Effects of spin-orbit coupling
• Josephson-current induced conformational switching of a molecular quantum dot
• Slave boson theory for transport through magnetic molecules with vibronic states
• Temperature effect in the conductance of hydrogen molecule