2019/12/31 by Misaki Ozawa, Ludovic Berthier, Giulio Biroli +1
Physics and Astronomy · #cond-mat.dis-nn #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevresearch.2.023203
published as Phys. Rev. Research 2, 023203 (2020) · 11 pages, 10 figures
arxiv created 2020/05/22 · arxiv updated 2020/05/26
We numerically study yielding in two-dimensional glasses which are generated with a very wide range of stabilities by swap Monte-Carlo simulations and then slowly deformed at zero temperature. We provide strong numerical evidence that stable glasses yield via a nonequilibrium discontinuous transition in the thermodynamic limit. A critical point separates this brittle yielding from the ductile one observed in less stable glasses. We find that two-dimensional glasses yield similarly to their three-dimensional counterparts but display larger sample-to-sample disorder-induced fluctuations, stronger finite-size effects, and rougher spatial wandering of the observed shear bands. These findings strongly constrain effective theories of yielding.