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Elastoplasticity Mediates Dynamical Heterogeneity Below the Mode-Coupling Temperature

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-range, 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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https://hal.inria.fr/hal-03345449
Contributor : François LANDES Connect in order to contact the contributor
Submitted on : Wednesday, September 15, 2021 - 3:29:41 PM
Last modification on : Friday, August 5, 2022 - 9:27:27 AM
Long-term archiving on: : Thursday, December 16, 2021 - 7:04:30 PM

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Rahul N Chacko, François P. Landes, Giulio Biroli, Olivier Dauchot, Andrea J Liu, et al.. Elastoplasticity Mediates Dynamical Heterogeneity Below the Mode-Coupling Temperature. Physical Review Letters, 2021, 127 (4), ⟨10.1103/PhysRevLett.127.048002⟩. ⟨hal-03345449⟩

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