Structural Phases in Non-Additive Soft-Disk Mixtures: Glasses, Substitutional Order, and Random Tilings

Abstract

Relaxation of the additivity condition on the interaction length between unlike species in a binary mixture of soft disks opens up a rich variety of structures in both crystal and amorphous states with an associated diverse range of relaxation dynamics. We report on MD simulation studies of binary soft disks with negative deviations from additivity that include evidence of accumulation of crystal-like structures in metastable liquids prior to crystallization and the occurrence of a liquid to random-tiling transition.

24 pages, 21 figures. Corrected error in pdf conversion

References in corpus (2)

• Avalanches and Dynamical Correlations in supercooled liquids
• The Geometry of Slow Structural Fluctuations in a Supercooled Binary Alloy

Cited by in corpus (4)

• Infinite-pressure phase diagram of binary mixtures of (non)additive hard disks
• Unjamming in models with analytic pairwise potentials
• Defect-Mediated Relaxation in the Random Tiling Phase of a Binary Mixture: Birth, Death and Mobility of an Atomic Zipper
• Nonadditive Interactions Unlock Small-Particle Mobility in Binary Colloidal Monolayers