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Elasto-plasticity Mediates Avalanche Dynamics in Supercooled Liquids Below the Mode-Coupling Temperature

ORAL

Abstract

Athermal glasses under quasi-static shear respond elastically to local yield events. The resulting strain field can trigger additional rearrangements, resulting in an avalanche of yield events, as encapsulated in elasto-plastic models [1]. Similar avalanche dynamics have been observed in simulations of deeply supercooled liquids. In this talk, we show that this scenario of elastically-triggered avalanches applies to the dynamics of a model two-dimensional supercooled liquid below the mode-coupling temperature. As the temperature is increased past the mode-coupling temperature, this elastic signature vanishes, suggesting a transition to a different avalanche dynamics at higher temperatures.

[1] Nicolas et al., Rev. Mod. Phys. 90, 045006 (2018).

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Presenters

  • Rahul N Chacko

    James Franck Institute, University of Chicago

Authors

  • Rahul N Chacko

    James Franck Institute, University of Chicago

  • François P Landes

    Team Apprentissage-Optimisation, Laboratoire de Recherche en Informatique

  • Giulio Biroli

    École Normale Supérieure (Paris), Laboratoire de Physique, École normale supérieure, Physics, Ecole Normale Superieure

  • Olivier Dauchot

    Laboratoire Gulliver, École supérieure de physique et de chimie industrielles de la Ville de Paris, Gulliver, ESPCI Paris, ESPCI Paris, ESPCI, Gulliver Lab, UMR CNRS 7083, PSL Research University, ESPCI Paris 10 rue Vauquelin, 75005 Paris, France

  • Andrea Liu

    University of Pennsylvania, Department of Physics and Astronomy, University of Pennsylvania

  • David Reichman

    Department of Chemistry, Columbia University, New York, NY 10027, USA, Department of Chemistry, Columbia University, Columbia Univ