Spontaneous Spin Polarization in Quantum Wires
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
A number of recent experiments report spin polarization in quantum wires in the absence of magnetic fields. These observations are in apparent contradiction with the Lieb-Mattis theorem, which forbids spontaneous spin polarization in one dimension. We show that sufficiently strong interactions between electrons induce deviations from the strictly one-dimensional geometry and indeed give rise to a ferromagnetic ground state in a certain range of electron densities.
Cite
@article{arxiv.cond-mat/0507387,
title = {Spontaneous Spin Polarization in Quantum Wires},
author = {A. D. Klironomos and J. S. Meyer and K. A. Matveev},
journal= {arXiv preprint arXiv:cond-mat/0507387},
year = {2009}
}
Comments
4 pages, 4 figures