The favoured cluster structures of model glass formers

Abstract

We examine the favoured cluster structures for two new potentials, which both behave as monatomic model glass-formers in bulk. We find that the oscillations in the interatomic potential lead to global minima that are non-compact arrangements of linked 13-atom icosahedra. We find that the structural properties of the clusters correlate with the glass-forming propensities of the potentials, and with the fragilities of the corresponding supercooled liquids.

arXiv comment9 pages, 7 figures; new section added and error in potential parameters corrected

References in corpus (13)

• Global Optimization by Basin-Hopping and the Lowest Energy Structures of Lennard-Jones Clusters Containing up to 110 Atoms
• Testing Mode-Coupling Theory for a Supercooled Binary Lennard-Jones Mixture I: The van Hove Correlation Function
• String-like Clusters and Cooperative Motion in a Model Glass-Forming Liquid
• Scaling behavior in the $\beta$-relaxation regime of a supercooled Lennard-Jones mixture
• Testing Mode-Coupling Theory for a Supercooled Binary Lennard-Jones Mixture II: Intermediate Scattering Function and Dynamic Susceptibility
• The relationship between fragility, configurational entropy and the potential energy landscape of glass forming liquids
• Inherent Structure Entropy of Supercooled Liquids
• Absence of Thermodynamic Phase Transition in a Model Glass Former
• Decoupling of diffusion from structural relaxation and spatial heterogeneity in a supercooled simple liquid
• Off-Equilibrium Effective Temperature in Monatomic Lennard-Jones Glass
• Polytetrahedral Clusters
• Quasi-saddles as relevant points of the potential energy surface in the dynamics of supercooled liquids
• Global Optimization and the Energy Landscapes of Dzugutov Clusters

Cited by in corpus (26)

• Phase-field-crystal models for condensed matter dynamics on atomic length and diffusive time scales: an overview
• Roles of icosahedral and crystal-like order in hard spheres glass transition
• Understanding fragility in supercooled Lennard-Jones mixtures. I. Locally preferred structures
• Controlling crystallization and its absence: Proteins, colloids and patchy models
• How Do Quasicrystals Grow?
• Polymorphism, crystal nucleation and growth in the phase-field crystal model in 2d and 3d
• Charge-cluster glass in an organic conductor
• Amorphous nucleation precursor in highly nonequilibrium fluids
• A model metal potential exhibiting polytetrahedral clusters
• Identifying structural patterns in `disordered' metal clusters
• Composition-induced structural transitions in mixed rare-gas clusters
• Locally preferred structure in simple atomic liquids
• A liquid-solid critical point in a simple monatomic system
• Tetrahedrality dictates dynamics in hard spheres
• Nonequilibrium static growing length scales in supercooled liquids on approaching the glass transition
• Generalized van der Waals theory of liquid-liquid phase transitions
• On the origin of multi-component bulk metallic glasses: Atomic size mismatches and de-mixing
• Relationship between dynamical heterogeneities and stretched exponential relaxation
• A Structural Model for Octagonal Quasicrystals Derived from Octagonal Symmetry Elements Arising in $\beta$-Mn Crystallization of a Simple Monatomic Liquid
• Free energy of the bcc-liquid interface and the Wulff shape as predicted by the Phase-Field Crystal model
• A simple diatomic potential that prevents crystallization in supercooled liquids simulations
• Structure in Sheared Supercooled Liquids: Dynamical Rearrangements of an Effective System of Icosahedra
• Rotational and translational dynamics in dense fluids of patchy particles
• Probing Local Structure in Glass by the Application of Shear
• Evidence for compact cooperatively rearranging regions in a supercooled liquid
• Pressure dependence of two-level systems in disordered atomic chain