Spatially heterogeneous dynamics and dynamic facilitation in a model of viscous silica
Disordered Systems and Neural Networks
2009-11-10 v1
Abstract
Performing molecular dynamics simulations, we find that the structural relaxation dynamics of viscous silica, the prototype of a strong glass former, are spatially heterogeneous and cannot be understood as a statistical bond breaking process. Further, we show that high particle mobility predominantly propagates continuously through the melt, supporting the concept of dynamic facilitation emphasized in recent theoretical work.
Keywords
Cite
@article{arxiv.cond-mat/0402427,
title = {Spatially heterogeneous dynamics and dynamic facilitation in a model of viscous silica},
author = {Michael Vogel and Sharon C. Glotzer},
journal= {arXiv preprint arXiv:cond-mat/0402427},
year = {2009}
}
Comments
4 pages, 4 figures