Ref HAL: hal-00008334_v1
Ref Arxiv: cond-mat/0506629
DOI: 10.1088/0953-8984/17/45/050
WoS: 000235394200051
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
22 Citations
Résumé:

Kinetically constrained spin models are schematic coarse-grained models for the glass transition which represent an efficient theoretical tool to study detailed spatio-temporal aspects of dynamic heterogeneity in supercooled liquids. Here, we study how spatially correlated dynamic domains evolve with time and compare our results to various experimental and numerical investigations. We find that strong and fragile models yield different results. In particular, the lifetime of dynamic heterogeneity remains constant and roughly equal to the alpha relaxation time in strong models, while it increases more rapidly in fragile models when the glass transition is approached.

Commentaires: Submitted to the proceedings of the 6th EPS Liquid Matter Conference, Utrecht 2-6 July 2005