Wigner Molecules in Nanostructures
Condensed Matter
2009-10-22 v1
Abstract
The one-- and two-- particle densities of up to four interacting electrons with spin, confined within a quasi one--dimensional ``quantum dot'' are calculated by numerical diagonalization. The transition from a dense homogeneous charge distribution to a dilute localized Wigner--type electron arrangement is investigated. The influence of the long range part of the Coulomb interaction is studied. When the interaction is exponentially cut off the ``crystallized'' Wigner molecule is destroyed in favor of an inhomogeneous charge distribution similar to a charge density wave .
Cite
@article{arxiv.cond-mat/9305034,
title = {Wigner Molecules in Nanostructures},
author = {K. Jauregui and W. Haeusler and B. Kramer and PTB Braunschweig},
journal= {arXiv preprint arXiv:cond-mat/9305034},
year = {2009}
}
Comments
10 pages (excl. Figures), Figures available on request LaTeX