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).

*This work was funded by the Simons
Collaboration ”Cracking the glass problem” via 454935 (GB), 327939 and
454945 (AJL), 454951 (DR) and 348126 (SRN).

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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