Molecular dynamics study of a classical two-dimensional electron system: Positional and orientational orders
Abstract
Molecular dynamics simulation is used to investigate the crystallization of a classical two-dimensional electron system, in which electrons interact with the Coulomb repulsion. From the positional and the orientational correlation functions, we have found an indication that the solid phase has a quasi-long-range (power-law correlated) positional order and a long-range orientational order. This implies that the long-range 1/r system shares the absence of the true long-range crystalline order at finite temperatures with short-range ones for which Mermin's theorem applies. We also discuss the existence of the ``hexatic'' phase predicted by the Kosterlitz-Thouless-Halperin-Nelson-Young theory.
Cite
@article{arxiv.cond-mat/9906213,
title = {Molecular dynamics study of a classical two-dimensional electron system: Positional and orientational orders},
author = {Satoru Muto and Hideo Aoki},
journal= {arXiv preprint arXiv:cond-mat/9906213},
year = {2009}
}
Comments
6 pages, 4 figures; contributed to EP2DS-13; revised; to be published in Physica E