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Cooperative strings and glassy dynamics in various confined geometries

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Title: Cooperative strings and glassy dynamics in various confined geometries
Authors: Arutkin, Maxence Browse this author
Raphael, Elie Browse this author
Forrest, James A. Browse this author
Salez, Thomas Browse this author
Issue Date: 17-Mar-2020
Publisher: American Physical Society (APS)
Journal Title: Physical Review E
Volume: 101
Issue: 3
Start Page: 032122
Publisher DOI: 10.1103/PhysRevE.101.032122
Abstract: Previously, we developed a minimal model based on random cooperative strings for the relaxation of supercooled liquids in the bulk and near free interfaces, and we recovered some key experimental observations. In this article, after recalling the main ingredients of the cooperative string model, we study the effective glass transition and surface mobility of various experimentally relevant confined geometries: freestanding films, supported films, spherical particles, and cylindrical particles, with free interfaces and/or passive substrates. Finally, by canceling and restarting any cooperative-chain realization reaching the boundary with a smaller number of steps than the bulk cooperativity, we account for a purely attractive substrate, and explore the impact of the latter in the previous geometries.
Rights: Copyright (2020) by The American Physical Society.
Type: article
Appears in Collections:国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)


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