Rejuvenation and Memory Effects in a Structural Glass

Camille Scalliet (1) , Ludovic Berthier (1)

1 L2C - Laboratoire Charles Coulomb

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.

Domaines: Mécanique statistique [cond-mat.stat-mech]; Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]; Matière Molle [cond-mat.soft]

Camille Scalliet, Ludovic Berthier. Rejuvenation and Memory Effects in a Structural Glass. Physical Review Letters, 2019, 122, pp.255502. ⟨10.1103/PhysRevLett.122.255502⟩. ⟨hal-02180202⟩