Vitrification is a spontaneous non-equilibrium transition driven by osmotic pressure.
Brownian dynamics
Brownian motion
colloidal glass
colloids
phase arrest
Journal
Journal of physics. Condensed matter : an Institute of Physics journal
ISSN: 1361-648X
Titre abrégé: J Phys Condens Matter
Pays: England
ID NLM: 101165248
Informations de publication
Date de publication:
23 Apr 2021
23 Apr 2021
Historique:
received:
16
12
2020
accepted:
15
03
2021
pubmed:
17
3
2021
medline:
17
3
2021
entrez:
16
3
2021
Statut:
epublish
Résumé
Persistent dynamics in colloidal glasses suggest the existence of a non-equilibrium driving force for structural relaxation during glassy aging. But the implicit assumption in the literature that colloidal glasses form within the metastable state bypasses the search for a driving force for vitrification and glassy aging and its connection with a metastable state. The natural relation of osmotic pressure to number-density gradients motivates us to investigate the osmotic pressure as this driving force. We use dynamic simulation to quench a polydisperse hard-sphere colloidal liquid into the putative glass region while monitoring structural relaxation and osmotic pressure. Following quenches to various depths in volume fraction
Identifiants
pubmed: 33724236
doi: 10.1088/1361-648X/abeec0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2021 IOP Publishing Ltd.