Glass transition is accompanied by a rapid growth of the structural
relaxation time and a concomitant decrease of configurational entropy. It
remains unclear whether the transition has a thermodynamic origin, and whether
the dynamic arrest is associated with the growth of a certain static order.
Using granular packing as a model hard-sphere glass, we show the glass
transition as a thermodynamic phase transition with a "hidden" polytetrahedral
order. This polytetrahedral order is spatially correlated with the slow
dynamics. It is geometrically frustrated and has a peculiar fractal dimension.
Additionally, as the packing fraction increases, its growth follows an
entropy-driven nucleation process, similar to that of the random first-order
transition theory. Our study essentially identifies a long-sought-after
structural glass order in hard-sphere glasses.
Description
The structural origin of the hard-sphere glass transition in granular
packing
%0 Generic
%1 xia2015structural
%A Xia, Chengjie
%A Li, Jindong
%A Cao, Yixin
%A Kou, Binquan
%A Xiao, Xinaghui
%A Fezzaa, Kamel
%A Xiao, Tiqiao
%A Wang, Yujie
%D 2015
%K glass granular hard sphere transition
%R 10.1038/NCOMMS9409
%T The structural origin of the hard-sphere glass transition in granular
packing
%U http://arxiv.org/abs/1509.08615
%X Glass transition is accompanied by a rapid growth of the structural
relaxation time and a concomitant decrease of configurational entropy. It
remains unclear whether the transition has a thermodynamic origin, and whether
the dynamic arrest is associated with the growth of a certain static order.
Using granular packing as a model hard-sphere glass, we show the glass
transition as a thermodynamic phase transition with a "hidden" polytetrahedral
order. This polytetrahedral order is spatially correlated with the slow
dynamics. It is geometrically frustrated and has a peculiar fractal dimension.
Additionally, as the packing fraction increases, its growth follows an
entropy-driven nucleation process, similar to that of the random first-order
transition theory. Our study essentially identifies a long-sought-after
structural glass order in hard-sphere glasses.
@misc{xia2015structural,
abstract = {Glass transition is accompanied by a rapid growth of the structural
relaxation time and a concomitant decrease of configurational entropy. It
remains unclear whether the transition has a thermodynamic origin, and whether
the dynamic arrest is associated with the growth of a certain static order.
Using granular packing as a model hard-sphere glass, we show the glass
transition as a thermodynamic phase transition with a "hidden" polytetrahedral
order. This polytetrahedral order is spatially correlated with the slow
dynamics. It is geometrically frustrated and has a peculiar fractal dimension.
Additionally, as the packing fraction increases, its growth follows an
entropy-driven nucleation process, similar to that of the random first-order
transition theory. Our study essentially identifies a long-sought-after
structural glass order in hard-sphere glasses.},
added-at = {2015-09-30T15:56:54.000+0200},
author = {Xia, Chengjie and Li, Jindong and Cao, Yixin and Kou, Binquan and Xiao, Xinaghui and Fezzaa, Kamel and Xiao, Tiqiao and Wang, Yujie},
biburl = {https://www.bibsonomy.org/bibtex/2f4dad380b54e891baf1940ed97b66023/marcogherardi},
description = {The structural origin of the hard-sphere glass transition in granular
packing},
doi = {10.1038/NCOMMS9409},
interhash = {ed8b77739e03d66f34bc190335cfba23},
intrahash = {f4dad380b54e891baf1940ed97b66023},
keywords = {glass granular hard sphere transition},
note = {cite arxiv:1509.08615},
timestamp = {2015-09-30T15:56:54.000+0200},
title = {The structural origin of the hard-sphere glass transition in granular
packing},
url = {http://arxiv.org/abs/1509.08615},
year = 2015
}