Extended correlations in the critical superheated solid
Abstract
Metastable states in first-order phase transitions reveal interesting behavior about a wide range of systems in statistical mechanics, including spin systems, cellular automata and condensed matter systems. These metastable states are often observed in a microcanonical setting, where they manifest long-range correlations due to collective effects. In this work we show the existence of long-range potential energy correlations between atoms in a microcanonical superheated Lennard-Jones crystal prior to homogeneous melting. Our results suggest that the cooperative motion made possible by the presence of vacancy-interstitial pairs above the melting temperature induces effective long-range interatomic forces even beyond the fourth neighboring layer.
Cite
@article{arxiv.1904.09943,
title = {Extended correlations in the critical superheated solid},
author = {Vivianne Olguín-Arias and Sergio Davis and Gonzalo Gutiérrez},
journal= {arXiv preprint arXiv:1904.09943},
year = {2019}
}