Magnetic semiconductor artificial atom with many particles: Thomas-Fermi model and ferromagnetic phases
Mesoscale and Nanoscale Physics
2007-05-23 v2
Abstract
Many-particle electron states in semiconductor quantum dots with carrier-mediated ferromagnetism are studied theoretically within the self-consistent Boltzmann equation formalism. Depending on the conditions, a quantum dot may contain there phases: partially spin-polarized ferromagnetic, fully spin-polarized ferromagnetic, and paramagnetic phases. The physical properties of many-body ferromagnetic confined systems come from the competing carrier-mediated ferromagnetic and Coulomb interactions. The magnetic phases in gated quantum dots with holes can be controlled by the voltage or via optical methods.
Keywords
Cite
@article{arxiv.cond-mat/0504559,
title = {Magnetic semiconductor artificial atom with many particles: Thomas-Fermi model and ferromagnetic phases},
author = {Alexander O. Govorov},
journal= {arXiv preprint arXiv:cond-mat/0504559},
year = {2007}
}
Comments
13 pages, 5 figures, submitted to PRB