Identity Ordering and Metastable Clusters in Fluids with Random Interactions
arXiv:1812.02620 · doi:10.1063/1.5083218
Abstract
We use Langevin dynamics simulations to study dense two-dimensional systems of particles where all binary interactions are different (AID) in the sense that each interaction parameter is characterized by a randomly chosen number. We compare two systems that differ by the probability distributions from which the interaction parameters are drawn: uniform (U) and exponential (E). Both systems undergo neighborhood identity ordering (NIO) and form metastable clusters in the fluid phase near the liquid-solid transition but the effects are much stronger in E than in U systems. Possible implications of our results for the control of the structure of multicomponent alloys are discussed.
References in corpus (9)
- 2D Melting: From Liquid-Hexatic Coexistence to Continuous Transitions
- Projected free energies for polydisperse phase equilibria
- Instabilities in complex mixtures with a large number of components
- Phase diagram and melting scenarios of two-dimensional Hertzian spheres
- Perturbative polydispersity: Phase equilibria of near-monodisperse systems
- Effect of Energy Polydispersity on the Nature of Lennard-Jones Liquids
- Particle dynamics in fluids with random interactions
- Pair interaction ordering in fluids with random interactions
- A polydisperse lattice-gas model