Finite bias conductance of an Anderson level: a source--Liouville Hartree-Fock study.
We address the problem of stationary conductance through an Anderson spin-degenerate level at finite bias. Just as in the Anderson solution, for a finite bias in parameter space (bias, gate voltage, interaction constant, and the couplings to the leads) there exist spin-polarized and non-spin-polarized regions. The transition curve between them is found analytically for the case of symmetric coupling to the left and right leads. We approach the problem by a non-Markovian source-Liouville equation where the two-body interaction self-energies are taken in the Hartree-Fock approximation.
Ovchinnikov
Igor V
IV
Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA.
Neuhauser
Daniel
D