Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach

Abstract

We study the differential conductance, spectral density and magnetization, for a quantum dot coupled to two conducting leads as a function of bias voltage, magnetic field and temperature. The system is modeled with the Anderson model solved using a spin dependent interpolative perturbative approximation in the Coulomb repulsion U that conserves the current. For large enough magnetic field, the differential conductance as a function of bias voltage shows split peaks. This splitting is larger than the corresponding splitting in the spectral density of states, in agreement with experiment.

31 pages, 6 figures, submitted to Phys. Rev. B

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• Splitting of the Kondo resonance in anisotropic magnetic impurities on surfaces
• Quantum transport simulation scheme including strong correlations and its application to organic radicals adsorbed on gold
• Comparison between scattering-states numerical renormalization group and the Kadanoff-Baym-Keldysh approach to quantum transport: Crossover from weak to strong correlations
• Nonequilibrium dynamics of a singlet-triplet Anderson impurity near the quantum phase transition
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• Interpolative approach for electron-electron and electron-phonon interactions: from the Kondo to the polaronic regime
• Heat current across a capacitively coupled double quantum dot for high magnetic field
• Nonequilibrium self-energies, Ng approach and heat current of a nanodevice for small bias voltage and temperature
• Iterative path integral summation for nonequilibrium quantum transport
• Extension of the Nakajima-Zwanzig approach to multitime correlation functions of open systems
• Nonequilibrium Kondo transport through a quantum dot in a magnetic field
• Nonequilibrium conductance through a benzene molecule in the Kondo regime
• Nonequilibrium transport in molecular junctions with strong electron-phonon interactions
• Out of equilibrium transport through an Anderson impurity: Probing scaling laws within the equation of motion approach
• Dynamical Mean-Field Theory for spin-dependent electron transport in spin-valve devices
• The DFT+${\Sigma }_2$ method for electron correlation effects at transition metal surfaces
• Failure of mean-field approach in out-of-equilibrium Anderson model
• Replicas of the Fano resonances induced by phonons in a subgap Andreev tunneling
• Universal out-of-equilibrium transport in Kondo-correlated quantum dots
• Scaling of conductance through quantum dots with magnetic field
• Influence of assisted hopping interaction on the linear conductance of quantum dot
• Local density of states on a vibrational quantum dot out of equilibrium
• Spin selective transport through Aharonov-Bohm and Aharonov-Casher triple quantum dot systems
• Leading temperature dependence of the conductance in Kondo-correlated quantum dots
• Multi-terminal Anderson impurity model in nonequilibrium: Analytical perturbative treatment
• Mesoscopic features in the transport properties of a Kondo-correlated quantum dot in a magnetic field
• Kondo effect in transport through Aharonov-Bohm and Aharonov-Casher interferometers
• Selfconsistent hybridization expansions for static properties of the Anderson impurity model
• Non-equilibrium transport theory of the singlet-triplet transition: perturbative approach
• Perturbative theory of the non-equilibrium singlet-triplet transition
• Steady-state dc transport through an Anderson impurity coupled to leads with spin-orbit coupling