Phonon-assisted Kondo Effect in a Single-Molecule Transistor out of Equilibrium

Abstract

The joint effect of the electron-phonon interaction and Kondo effect on the nonequilibrium transport through the single molecule transistor is investigated by using the improved canonical transformation scheme and extended equation of motion approach. Two types of Kondo phonon-satellites with different asymmetric shapes are fully confirmed in the spectral function, and are related to the electron spin singlet or hole spin singlet, respectively. Moreover, when a moderate Zeeman splitting is caused by a local magnetic field, the Kondo satellites in the spin resolved spectral function are found disappeared on one side of the main peak, which is opposite for different spin component. All these peculiar signatures that manifest themselves in the nonlinear differential conductance, are explained with a clear physics picture.

12 pages, 6 figures

References in corpus (12)

• Franck-Condon blockade and giant Fano factors in transport through single molecules
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Kondo effect in quantum dots coupled to ferromagnetic leads
• Inelastic electron tunneling via molecular vibrations in single-molecule transistors
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Effects of electron-phonon interaction on non-equilibrium transport through single-molecule transistor
• Vibrational Sidebands and Kondo-effect in Molecular Transistors
• On the applicability of the equations-of-motion technique for quantum dots
• Quantum transport through a deformable molecular transistor
• Transport in single-molecule transistors: Kondo physics and negative differential resistance
• Magnetoconductance through a vibrating molecule in the Kondo regime
• Slave-boson approach to the infinite-U Anderson-Holstein impurity model

Cited by in corpus (4)

• Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations: effects due to electron-phonon coupling
• Inelastic electron tunneling spectroscopy for probing strongly correlated many-body systems by scanning tunneling microscopy
• Transport through a quantum dot subject to spin and charge bias: Kondo regime
• Inelastic Kondo-Andreev tunnelings in a vibrating quantum dot