Structural Transitions in a Classical Two-Dimensional Molecule System
Abstract
The ground state of a classical two-dimensional (2D) system with finite number of charged particles, trapped by two positive impurities charges localized at a distance (zo) from the 2D plane and separated from each other by a distance xp are obtained. The impurities are allowed to carry more than one positive charge. This classical system can form a 2D-like classical molecule that exhibits structural transitions and spontaneous symmetry breaking as a function of the separation between the positive charges before it transforms into two independent 2D-like classical atoms. We also observe structural transitions as a function of the dielectric constant of the substrate which supports the charged particles, in addition to broken symmetry states and unbinding of particles.
Keywords
Cite
@article{arxiv.cond-mat/0203137,
title = {Structural Transitions in a Classical Two-Dimensional Molecule System},
author = {W. P. Ferreira and G. A. Farias and H. A. Carmona and F. M. Peeters},
journal= {arXiv preprint arXiv:cond-mat/0203137},
year = {2009}
}
Comments
9 pages, 7 figures