Scalliet Camille, Berthier Ludovic
Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France.
Phys Rev Lett. 2019 Jun 28;122(25):255502. doi: 10.1103/PhysRevLett.122.255502.
We show numerically that a three-dimensional model for structural glass displays aging, rejuvenation, and memory effects when subjected to a temperature cycle. These effects indicate that the free energy landscape of structural glasses may possess the complex hierarchical structure that characterizes materials such as spin and polymer glasses. We use the theoretical concept of marginal stability to interpret our results, and explain in which physical conditions a complex aging dynamics can emerge in dense supercooled liquids, paving the way for future experimental studies of complex aging dynamics in colloidal and granular glasses.
我们通过数值模拟表明，一种用于结构玻璃的三维模型在经历温度循环时会表现出老化、恢复活力和记忆效应。这些效应表明，结构玻璃的自由能景观可能具有复杂的层次结构，这种结构是自旋玻璃和聚合物玻璃等材料的特征。我们使用边际稳定性的理论概念来解释我们的结果，并解释在哪些物理条件下，致密过冷液体中会出现复杂的老化动力学，为未来胶体玻璃和颗粒玻璃中复杂老化动力学的实验研究铺平道路。
