Electronic Transport through Magnetic Molecules with Soft Vibrating Modes

Abstract

The low-temperature transport properties of a molecule are studied in the field-effect transitor geometry. The molecule has an internal mechanical mode that modulates its electronic levels and renormalizes both the interactions and the coupling to the electrodes. For a soft mechanical mode the spin fluctuations in the molecule are dominated by the bare couplings while the valence changes are determined by the dressed energies. In this case, the transport properties present an anomalous behavior and the Kondo temperature has a weak gate voltage dependence. These observations are in agreement with recent experimental data.

4 pages, 3 figures, accepted in PRB RC

References in corpus (14)

• Kondo Physics in a Single Electron Transistor
• Franck-Condon blockade and giant Fano factors in transport through single molecules
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Tunneling broadening of vibrational sidebands in molecular transistors
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Numerical Renormalization Group Study of the Anderson-Holstein Impurity Model
• Kondo resonances and anomalous gate dependence of electronic conduction in single-molecule transistors
• Vibrational Sidebands and Kondo-effect in Molecular Transistors
• Pair tunneling through single molecules
• Quantum transport through a deformable molecular transistor
• Bi-stable tunneling current through a molecular quantum dot
• Quantum Monte Carlo method for models of molecular nanodevices
• Enhanced Kondo Effect in an Electron System Dynamically Coupled with Local Optical Phonon
• Electron-Phonon Correlation Effects in Molecular Transistors

Cited by in corpus (22)

• Universal Scaling of Nonequilibrium Transport in the Kondo Regime of Single Molecule Devices
• Nonequilibrium isolated molecule limit
• The Anderson--Holstein Model in Two Flavors of the Non--Crossing Approximation
• Nonequilibrium transport through magnetic vibrating molecules
• Phonon-assisted tunneling and two-channel Kondo physics in molecular junctions
• Kondo effect and channel mixing in oscillating molecules
• Memristive properties of single-molecule magnets
• Nonequilibrium conductance through a benzene molecule in the Kondo regime
• Transport Characterization of Kondo-Correlated Single Molecule Devices
• Many-body effects in magnetic inelastic electron tunneling spectroscopy
• Single magnetic molecule between conducting leads: Effect of mechanical rotations
• Replicas of the Kondo peak due to electron-vibration interaction in molecular transport properties
• Out of equilibrium transport through an Anderson impurity: Probing scaling laws within the equation of motion approach
• A comparative study of nonequilibrium insulator-to-metal transitions in electron-phonon systems
• Vibrational Andreev bound states in magnetic molecules
• Electron-vibron coupling effects on electron transport via a single-molecule magnet
• Dynamical magnetic anisotropy and quantum phase transitions in a vibrating spin-1 molecular junction
• Quantum phase transitions in a charge-coupled Bose-Fermi Anderson model
• Transport properties of a molecule embedded in an Aharonov-Bohm interferometer
• Destructive quantum interference in transport through molecules with electron-electron and electron-vibration interactions
• Effects of electron-phonon coupling in the Kondo regime of a two-orbital molecule
• Spin nutation effects in molecular nanomagnet$-$superconductor tunnel junctions