Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems
Mesoscale and Nanoscale Physics
2007-05-23 v1
Abstract
We extend our ensemble density functional approach to quantum Hall systems to include non-collinear spins to study charge-spin textures in inhomogeneous quantum Hall systems. We have studied the edge reconstruction in quantum dots at unit bulk filling factor and at 1/3 bulk filling factor as a function of the stiffness of an external confining potential. For soft enough edges, these systems reconstruct to a state in which the electron spins rotate gently as the edge is approached, with a non-trivial spin-charge texture at the edge of the system.
Keywords
Cite
@article{arxiv.cond-mat/9712168,
title = {Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems},
author = {O. Heinonen and J. M. Kinaret and M. D. Johnson},
journal= {arXiv preprint arXiv:cond-mat/9712168},
year = {2007}
}
Comments
26 pages (revtex), 5 eps figures, submitted to Phys Rev B