Towards frustration of freezing transition in a binary hard-disk mixture

Abstract

The freezing mechanism, recently suggested for a monodisperse hard-disk fluid [Huerta et al., Phys. Rev. E, 2006, 74, 061106] is extended here to an equimolar binary hard-disk mixtures. We are showing that for diameter ratios, smaller than 1.15 the global orientational order parameter of the binary mixture behaves like in the case of a monodisperse fluid. Namely, by increasing the disk number density there is a tendency to form a crystalline-like phase. However, for diameter ratios larger than 1.15 the binary mixtures behave like a disordered fluid. We use some of the structural and thermodynamic properties to compare and discuss the behavior as a function of diameter ratio and packing fraction.

9 pages, 4 figures

References in corpus (1)

• Large-Scale Simulations of the Two-Dimensional Melting of Hard Disks

Cited by in corpus (4)

• Applicability of dynamic facilitation theory to binary hard disk systems
• Equation of state of polydisperse hard-disk mixtures in the high-density regime
• In-plane structure of the electric double layer in the primitive model using classical density functional theory
• Frustration of freezing in a two dimensional hard-core fluid due to particle shape anisotropy