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Elastoplasticity Mediates Dynamical Heterogeneity Below the Mode Coupling Temperature

Rahul N. Chacko, François P. Landes, Giulio Biroli, Olivier Dauchot, Andrea J. Liu, and David R. Reichman
Phys. Rev. Lett. 127, 048002 – Published 22 July 2021
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Abstract

As liquids approach the glass transition temperature, dynamical heterogeneity emerges as a crucial universal feature of their behavior. Dynamic facilitation, where local motion triggers further motion nearby, plays a major role in this phenomenon. Here we show that long-ranged, elastically mediated facilitation appears below the mode coupling temperature, adding to the short-range component present at all temperatures. Our results suggest deep connections between the supercooled liquid and glass states, and pave the way for a deeper understanding of dynamical heterogeneity in glassy systems.

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  • Received 4 March 2021
  • Revised 14 May 2021
  • Accepted 10 June 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.048002

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Statistical Physics & ThermodynamicsPolymers & Soft MatterGeneral PhysicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Rahul N. Chacko1,2,*, François P. Landes3, Giulio Biroli4, Olivier Dauchot5, Andrea J. Liu1, and David R. Reichman6

  • 1Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
  • 2James Franck Institute, University of Chicago, Chicago, Illinois 60637, USA
  • 3Université Paris-Saclay, CNRS, Laboratoire Interdisciplinaire des Sciences du Numérique, Orsay 91400, France
  • 4Laboratoire de Physique de l’École normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris F-75005 Paris, France
  • 5UMR Gulliver 7083 CNRS, ESPCI, PSL Research University, 10 rue Vauquelin, Paris 75005, France
  • 6Department of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, USA

  • *Corresponding author. chackorn@sas.upenn.edu

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Issue

Vol. 127, Iss. 4 — 23 July 2021

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