The Kondo effect in C${}_{60}$ single-molecule transistors

Abstract

We have used an electromigration technique to fabricate C${}_{60}$-based single-molecule transistors. We detail the process statistics and the protocols used to infer the successful formation of a single-molecule transistor. At low temperatures each transistor acts as a single-electron device in the Coulomb blockade regime. Resonances in the differential conductance indicate vibrational excitations consistent with a known mode of C${}_{60}$. In several devices we observe conductance features characteristic of the Kondo effect, a coherent many-body state comprising an unpaired spin on the molecule coupled by exchange to the conduction electrons of the leads. The inferred Kondo temperature typically exceeds 50 K, and signatures of the vibrational modes persist into the Kondo regime.

5 pages, four figures. Submitted to Nano Letters

References in corpus (7)

• Kondo Physics in a Single Electron Transistor
• A Tunable Kondo Effect in Quantum Dots
• From the Kondo Regime to the Mixed-Valence Regime in a Single-Electron Transistor
• The Kondo Effect in the Unitary Limit
• Kondo physics in carbon nanotubes
• The Anderson Model out of Equilibrium: Non-Crossing-Approximation Approach to Transport through a Quantum Dot
• Fano Resonances in Electronic Transport through a Single Electron Transistor

Cited by in corpus (129)

• Molecular Transport Junctions: Vibrational Effects
• Signatures of Molecular Magnetism in Single-Molecule Transport Spectroscopy
• Inelastic electron tunneling via molecular vibrations in single-molecule transistors
• Quantum phase transition in a single-molecule quantum dot
• Simultaneous measurements of electronic conduction and Raman response in molecular junctions
• Controlled Fabrication of Nanogaps in Ambient Environment for Molecular Electronics
• Theory of the Franck-Condon blockade regime
• Thermopower of Single-Molecule Devices
• Resonant inelastic tunneling in molecular junctions
• Tuning the Kondo effect with a mechanically controllable break junction
• Mechanically-adjustable and electrically-gated single-molecule transistors
• Many Body Effects on the Transport Properties of Single-Molecule Devices
• Kondo Effect in Electromigrated Gold Break Junctions
• Effects of electron-phonon interaction on non-equilibrium transport through single-molecule transistor
• The Kondo effect in ferromagnetic atomic contacts
• Near-perfect conduction through a ferrocene-based molecular wire
• Kondo resonances and anomalous gate dependence of electronic conduction in single-molecule transistors
• The Kondo Effect in the Presence of Magnetic Impurities
• Kondo effect by controlled cleavage of a single molecule contact
• Superconductivity in a single C60 transistor
• Super-fermion representation of the Lindblad master equation for the electron transport problem
• Spin-1/2 Kondo effect in an InAs nanowire quantum dot: the Unitary limit, conductance scaling and Zeeman splitting
• Observation of the underscreened Kondo effect in a molecular transistor
• Tunneling Spectra of Individual Magnetic Endofullerene Molecules
• Vibrational Sidebands and Kondo-effect in Molecular Transistors
• Phonon-mediated negative differential conductance in molecular quantum dots
• Full counting statistics of vibrationally-assisted electronic conduction: transport and fluctuations of the thermoelectric efficiency
• Density-operator approaches to transport through interacting quantum dots: Simplifications in fourth-order perturbation theory
• Inelastic tunneling effects on noise properties of molecular junctions
• Inelastic effects in molecular junctions in the Coulomb and Kondo regimes: Nonequilibrium equation-of-motion approach
• Vibration-induced correction to the current through a single molecule
• Charge transfer statistics of a molecular quantum dot with a vibrational degree of freedom
• Self-consistent theory of molecular switching
• Quantum transport through a deformable molecular transistor
• Quantitative Current-Voltage Characteristics in Molecular Junctions from First Principles
• Universal Scaling of Nonequilibrium Transport in the Kondo Regime of Single Molecule Devices
• Direct measurement of the Seebeck coefficient in a Kondo-correlated single-quantum-dot transistor
• Charge transfer statistics of a molecular quantum dot with strong electron-phonon interaction
• Green's function methods for single molecule junctions
• Green function techniques in the treatment of quantum transport at the molecular scale
• Kondo blockade due to quantum interference in single-molecule junctions
• Coulomb blockade in electron transport through a C${}_{60}$ molecule from first principles
• Electronic and optical properties of electromigrated molecular junctions
• Towards a full ab initio theory of strong electronic correlations in nanoscale devices
• Josephson current through a molecular transistor in a dissipative environment
• Quantum transport simulation scheme including strong correlations and its application to organic radicals adsorbed on gold
• Nuclear wave function interference in single-molecule electron transport
• Photon-Phonon-assisted tunneling through a single-molecular quantum dot
• Shot noise of inelastic tunneling through quantum dot systems
• The electron transport through a quantum dot in the Coulomb blockade regime: Non-equilibrium Green's functions based model
• Transport in single-molecule transistors: Kondo physics and negative differential resistance
• Fano Effect through Parallel-coupled Double Coulomb Islands
• Nonequilibrium electron transport in strongly correlated molecular junctions
• Magnetoconductance through a vibrating molecule in the Kondo regime
• Nonequilibrium resonant spectroscopy of molecular vibrons
• Quantum Criticality in Ferromagnetic Single-Electron Transistors
• Electronic Transport through Magnetic Molecules with Soft Vibrating Modes
• Variational principle for quantum impurity systems in and out of equilibrium: application to Kondo problems
• Crossover from adiabatic to antiadiabatic phonon-assisted tunneling in single-molecule transistors
• Vibration-induced inelastic effects in the electron transport through multisite molecular bridges
• Kondo screening in a charge-insulating spinon metal
• Transient dynamics of a molecular quantum dot with a vibrational degree of freedom
• Effects of electron-phonon interaction on thermal and electrical transport through molecular nano-conductors
• Conductance scaling in Kondo correlated quantum dots: role of level asymmetry and charging energy
• The Influence of Magnetic Anisotropy on the Kondo Effect and Spin-Polarized Transport through Magnetic Molecules, Adatoms and Quantum Dots
• Transport properties of individual C60-molecules
• Full counting statistics of a single-molecular quantum dot
• Vibration-mediated resonant tunneling and shot noise through a molecular quantum dot
• Phonon-assisted tunneling and two-channel Kondo physics in molecular junctions
• Investigation of Gd3N@C2n (40 < n < 44) family by Raman and inelastic electron tunneling spectroscopy
• Rectification in single molecular dimers with strong polaron effect
• Phonon-assisted Kondo Effect in a Single-Molecule Transistor out of Equilibrium
• Observing magnetic anisotropy in electronic transport through individual single-molecule magnets
• Kondo effect and channel mixing in oscillating molecules
• Spin-charge separation and simultaneous spin and charge Kondo effect
• Electron-Phonon Correlation Effects in Molecular Transistors
• Electron-vibration effects on the thermoelectric efficiency of molecular junctions
• Resolving Ambiguity of the Kondo Temperature Determination in Mechanically Tunable Single-Molecule Kondo Systems
• Nonequilibrium Fock space for the electron transport problem
• Electron Transport through a Molecular Conductor with Center-of-Mass Motion
• Kondo effect in quantum dots coupled to ferromagnetic leads with noncollinear magnetizations: effects due to electron-phonon coupling
• Conductance of a molecule with a center of mass motion
• Surprises in the phase diagram of an Anderson impurity model for a single C${}_{60}^{n-}$ molecule
• Transport Characterization of Kondo-Correlated Single Molecule Devices
• Charge transport through image charged stabilized states in a single molecule single electron transistor device
• Dissipative tunneling and orthogonality catastrophe in molecular transistors
• Spin Current and Shot Noise in Single-Molecule Quantum Dots with a Phonon Mode
• Adiabatic pumping through a quantum dot in the Kondo regime: Exact results at the Toulouse limit
• Quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator
• Consistent bosonization-debosonization II: The two-lead Kondo problem and the fate of its non-equilibrium Toulouse point
• The number of transmission channels through a single-molecule junction
• Mechanism of Enhanced Rectification in Unimolecular Borromean Ring Devices
• Full counting statistics of phonon-assisted Andreev tunneling through a quantum dot coupled to normal and superconducting leads
• Vibration-induced Kondo tunneling through metal-organic complexes with even electron occupation number
• Spin thermopower in the overscreened Kondo model
• Time-dependent quantum transport in a resonant tunnel junction coupled to a nanomechanical oscillator
• Transport through a quantum dot subject to spin and charge bias: Kondo regime
• Dynamical symmetry breaking in vibration-assisted transport through nanostructures
• Tunable reentrant Kondo effect in quantum dots coupled to metal-superconducting hybrid reservoirs
• Interplay between electron-electron and electron-vibration interactions on the thermoelectric properties of molecular junctions
• Counting statistics of tunneling through a single molecule: effect of distortion and displacement of vibrational potential surface
• Quantum phase transitions in a charge-coupled Bose-Fermi Anderson model
• Numerical renormalization group calculation of impurity internal energy and specific heat of quantum impurity models
• Slave boson theory for transport through magnetic molecules with vibronic states
• Time-dependent single electron tunneling through a shuttling nano-island
• Probing Hybridization of a Single Energy Level Coupled to Superconducting Leads
• Adiabatic polaron dynamics and Josephson effect in a superconducting molecular quantum dot
• Analysis of the Kondo effect in ferromagnetic atomic-sized contacts
• Transport properties of a molecule embedded in an Aharonov-Bohm interferometer
• Out-of-equilibrium singlet-triplet Kondo effect in a single C_60 quantum dot
• Kondo effect in nanostructures
• Spectrum and Franck-Condon factors of interacting suspended single-wall carbon nanotubes
• Local phonon mode in a fermionic bath, and its relation to Kondo effect
• Phonon-assisted thermoelectric effects in a two-level molecule
• Robust negative differential conductance and enhanced shot noise in transport through a molecular transistor with vibration assistance
• Charge-Kondo effect mediated by repulsive interactions
• A multiconfigurational pair-density functional theory approach to molecular junctions
• Magnetic flux tuning of Fano-Kondo interplay in a parallel double quantum dot system
• Magnetic Single-Electron Transistor as a Tunable Model System for Kondo-Destroying Quantum Criticality
• Kondo effects in a C_60 single-molecule transistor
• Kondo-assisted switching between three conduction states in capacitively coupled quantum dots
• Nonlinear thermoelectric transport in single-molecule junctions: the effect of electron-phonon interactions
• Floquet Renormalization Group Approach to the Periodically Driven Kondo Model
• Impact of electron-phonon coupling on electron transport through T-shaped arrangements of quantum dots in the Kondo regime
• Kondo effect in oscillating molecules
• Broken Symmetry and Coherence of Molecular Vibrations in Tunnel Transitions
• Supplementary Information: Quantum phase transition in a single-molecule quantum dot
• Steady-state dc transport through an Anderson impurity coupled to leads with spin-orbit coupling
• A Gd@C82-based single molecular electret device with switchable electrical polarization