Glass transitions in two-dimensional suspensions of colloidal ellipsoids
Abstract
We observed a two-step glass transition in monolayers of colloidal ellipsoids by video microscopy. The glass transition in the rotational degree of freedom was at a lower density than that in the translational degree of freedom. Between the two transitions, ellipsoids formed an orientational glass. Approaching the respective glass transitions, the rotational and translational fastest-moving particles in the supercooled liquid moved cooperatively and formed clusters with power-law size distributions. The mean cluster sizes diverge in power law as approaching the glass transitions. The clusters of translational and rotational fastest-moving ellipsoids formed mainly within pseudo-nematic domains, and around the domain boundaries, respectively.
Keywords
Cite
@article{arxiv.1105.5760,
title = {Glass transitions in two-dimensional suspensions of colloidal ellipsoids},
author = {Zhongyu Zheng and Feng Wang and Yilong Han},
journal= {arXiv preprint arXiv:1105.5760},
year = {2015}
}