%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 }