Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach
Strongly Correlated Electrons
2009-11-11 v1
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.
Cite
@article{arxiv.cond-mat/0607773,
title = {Nonequilibrium magnetotransport through a quantum dot: An interpolative perturbative approach},
author = {A. A. Aligia},
journal= {arXiv preprint arXiv:cond-mat/0607773},
year = {2009}
}
Comments
31 pages, 6 figures, submitted to Phys. Rev. B