A spin-dependent local moment approach to the Anderson impurity model
Strongly Correlated Electrons
2011-08-04 v2
Abstract
We present an extension of the local moment approach to the Anderson impurity model with spin-dependent hybridization. By employing the two-self-energy description, as originally proposed by Logan and co-workers, we applied the symmetry restoration condition for the case with spin-dependent hybridization. Self-consistent ground states were determined through variational minimization of the ground state energy. The results obtained with our spin-dependent local moment approach applied to a quantum dot system coupled to ferromagnetic leads are in good agreement with those obtained from previous work using numerical renormalization group calculations.
Cite
@article{arxiv.0709.1187,
title = {A spin-dependent local moment approach to the Anderson impurity model},
author = {Choong H. Kim and Jaejun Yu},
journal= {arXiv preprint arXiv:0709.1187},
year = {2011}
}