Some Finite Size Effects in Simulations of Glass Dynamics
Statistical Mechanics
2009-10-28 v1
Abstract
We present the results of a molecular dynamics computer simulation in which we investigate the dynamics of silica. By considering different system sizes, we show that in simulations of the dynamics of this strong glass former surprisingly large finite size effects are present. In particular we demonstrate that the relaxation times of the incoherent intermediate scattering function and the time dependence of the mean squared displacement are affected by such finite size effects. By compressing the system to high densities, we transform it to a fragile glass former and find that for that system these types of finite size effects are much weaker.
Keywords
Cite
@article{arxiv.cond-mat/9610066,
title = {Some Finite Size Effects in Simulations of Glass Dynamics},
author = {J. Horbach and W. Kob and K. Binder and C. A. Angell},
journal= {arXiv preprint arXiv:cond-mat/9610066},
year = {2009}
}
Comments
12 pages of RevTex, 4 postscript figures available from W. Kob