Elastoplasticity Mediates Dynamical Heterogeneity Below the Mode Coupling Temperature

被引：31

作者：

Chacko, Rahul N. ^{[1
,2
]}

Landes, Francois P. ^{[3
]}

Biroli, Giulio ^{[4
]}

Dauchot, Olivier ^{[5
]}

Liu, Andrea J. ^{[1
]}

Reichman, David R. ^{[6
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[3] Univ Paris Saclay, Lab Interdisciplinaire Sci Numer, CNRS, F-91400 Orsay, France

[4] Univ Paris, Sorbonne Univ, Univ PSL, Lab Phys,Ecole Normale Super,ENS,CNRS, F-75005 Paris, France

[5] PSL Res Univ, ESPCI, UMR Gulliver 7083, CNRS, 10 Rue Vauquelin, F-75005 Paris, France

[6] Columbia Univ, Dept Chem, 3000 Broadway, New York, NY 10027 USA

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 127卷 / 04期

基金：

美国国家科学基金会;

关键词：

FLUCTUATIONS;

D O I：

10.1103/PhysRevLett.127.048002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：6

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