Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach
نویسنده
چکیده
We study the differential conductance, spectral density and magnetization, for a quantum dot coupled to two conducting leads as a function of bias voltage Vds, magnetic field B and temperature T . 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 ρd(ω), in agreement with experiment. Typeset using REVTEX 1
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