String-like Clusters and Cooperative Motion in a Model Glass-Forming Liquid

Abstract

A large-scale molecular dynamics simulation is performed on a glass-forming Lennard-Jones mixture to determine the nature of dynamical heterogeneities which arise in this model fragile liquid. We observe that the most mobile particles exhibit a cooperative motion in the form of string-like paths (``strings'') whose mean length and radius of gyration increase as the liquid is cooled. The length distribution of the strings is found to be similar to that expected for the equilibrium polymerization of linear polymer chains.

6 pages of RevTex, 6 postscript figures, uses epsf.sty

References in corpus (3)

• Dynamical heterogeneities in a supercooled Lennard-Jones liquid
• Aging Effects in a Lennard-Jones Glass
• A Study of Activated Processes in Soft Sphere Glass

Cited by in corpus (271)

• Theoretical perspective on the glass transition and amorphous materials
• Supercooled Liquids for Pedestrians
• Glassy dynamics of kinetically constrained models
• The Physics of the Colloidal Glass Transition
• On the growth and form of spherulites
• Spatial Correlations of Mobility and Immobility in a Glassforming Lennard-Jones Liquid
• The role of local structure in dynamical arrest
• Dynamics of Highly Supercooled Liquids:Heterogeneity, Rheology, and Diffusion
• Properties of cage rearrangements observed near the colloidal glass transition
• Coarse-grained microscopic model of glass formers
• Crossover to Potential Energy Landscape Dominated Dynamics in a Model Glass-forming Liquid
• Slow dynamics in glassy soft matter
• Inhomogeneous Mode-Coupling Theory and Growing Dynamic Length in Supercooled Liquids
• Mode-Coupling Theory (MCT) Lecture Notes
• Modeling the mechanics of amorphous solids at different length and time scales
• The Shapes of Cooperatively Rearranging Regions in Glass Forming Liquids
• Growing length and time scales in glass forming liquids
• Microscopic Theory of Heterogeneity and Non-Exponential Relaxations in Supercooled Liquids
• The Relationship of Dynamical Heterogeneity to the Adam-Gibbs and Random First-Order Transition Theories of Glass Formation
• Heterogeneous Diffusion in Highly Supercooled Liquids
• Spatial correlations in the dynamics of glassforming liquids: Experimental determination of their temperature dependence
• Granular Shear Flow Dynamics and Forces : Experiment and Continuum Theory
• Subdiffusion and the cage effect studied near the colloidal glass transition
• Cooperative motion and growing length scales in supercooled confined liquids
• Dynamics of simulated water under pressure
• Excitation lines and the breakdown of Stokes-Einstein relations in supercooled liquids
• Emergent collective phenomena in a mixture of hard shapes through active rotation
• Modifying Fragility and Collective Motion in Polymer Melts with Nanoparticles
• Computer Simulations of Supercooled Liquids and Glasses
• On nonlinear susceptibility in supercooled liquids
• Energy Barriers and Activated Dynamics in a Supercooled Lennard-Jones Liquid
• Grain Boundary Motion Exhibits the Dynamics of Glass-Forming Liquids
• Excitations are localized and relaxation is hierarchical in glass-forming liquids
• Observation of Fluctuation-Dissipation-Theorem Violations in a Structural Glass
• Asymptotic laws for tagged-particle motion in glassy systems
• Growing spatial correlations of particle displacements in a simulated liquid on cooling toward the glass transition
• Electrochemical Ion Insertion: From Atoms to Devices
• Democratic particle motion for meta-basin transitions in simple glass-formers
• Subdiffusion and cage effect in a sheared granular material
• Relation between Rotational and Translational Dynamic Heterogeneities in Water
• Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former
• Decoupling of diffusion from structural relaxation and spatial heterogeneity in a supercooled simple liquid
• The relaxation dynamics of a simple glass former confined in a pore
• Connection between Adam-Gibbs Theory and Spatially Heterogeneous Dynamics
• Metastable states as a key to the dynamics of supercooled liquids
• Spatially heterogeneous dynamics and dynamic facilitation in a model of viscous silica
• Dynamical Heterogeneities Below the Glass Transition
• Thirty milliseconds in the life of a supercooled liquid
• Heterogeneous Dynamics, Marginal Stability and Soft Modes in Hard Sphere Glasses
• Particle rearrangements during transitions between local minima of the potential energy landscape of a supercooled Lennard-Jones liquid
• Universal features of dynamic heterogeneity in supercooled liquids
• Unveiling Dimensionality Dependence of Glassy Dynamics: 2D Infinite Fluctuation Eclipses Inherent Structural Relaxation
• Relaxation in a glassy binary mixture: Mode-coupling-like power laws, dynamic heterogeneity and a new non-Gaussian parameter
• Growing Dynamical Facilitation on Approaching the Random Pinning Colloidal Glass Transition
• Cooperative Strings and Glassy Interfaces
• Sparse Cyclic Excitations Explain the Low Ionic Conductivity of Stoichiometric Li${}_7$La${}_3$Zr${}_2$O${}_{12}$
• Temperature dependence of spatially heterogeneous dynamics in a model of viscous silica
• Heterogeneous relaxation dynamics in amorphous materials under cyclic loading
• The favoured cluster structures of model glass formers
• Calorimetric glass transition explained by hierarchical dynamic facilitation
• Polymer Glass Formation: Role of Activation Free Energy, Configurational Entropy, and Collective Motion
• Particle motion during the compaction of granular matter
• Multiple length and time scales of dynamic heterogeneities in model glass-forming liquids: A systematic analysis of multi-point and multi-time correlations
• Lennard-Jones binary mixture: a thermodynamical approach to glass transition
• Out-of-equilibrium dynamical fluctuations in glassy systems
• An introduction to the colloidal glass transition
• Insights into glass formation and glass transition in supercooled liquids, by study of related phenomena in crystals
• Single Particle Jumps in a Binary Lennard-Jones System Below The Glass Transition
• Short and long range correlated motion observed in colloidal glasses and liquids
• Dynamic heterogeneity and non-Gaussian behavior in a model supercooled liquid
• Connections of activated hopping processes with the breakdown of the Stokes-Einstein relation and with aspects of dynamical heterogeneities
• Dynamic Entropy as a Measure of Caging and Persistent Particle Motion in Supercooled Liquids
• Growing static and dynamic length scales in a glass-forming liquid
• A Novel Route to Calculate the Length Scale for the Glass Transition in Polymers
• Dynamics and structure of an aging binary colloidal glass
• On the relationship between structure and dynamics in a supercooled liquid
• Predicting Complex Relaxation Processes in Metallic Glass
• Apparent finite-size effects in the dynamics of supercooled liquids
• Short-time $\beta$-relaxation in glass-forming liquids is cooperative in nature
• The race to the bottom: approaching the ideal glass?
• Growing length and time scales in a suspension of athermal particles
• Avalanches mediate crystallization in a hard-sphere glass
• Particle jumps in structural glasses
• Dynamics of particles and cages in an experimental 2D glass former
• Common mechanism of thermodynamic and mechanical origin for ageing and crystallisation of glasses
• Transitions between Inherent Structures in Water
• Fast Dynamics in a Model Metallic Glass-forming Material
• Spatial and temporal dynamical heterogeneities approaching the binary colloidal glass transition
• Distribution of local relaxation events in an aging 3D glass: spatio-temporal correlation and dynamical heterogeneity
• Gaussian excitations model for glass-former dynamics and thermodynamics
• Fluctuating Topological Defects in 2D Liquids: Heterogeneous Motion and Noise
• Diffusion and jump-length distribution in liquid and amorphous Cu${}_{33}$Zr${}_{67}$
• Slow relaxations and stringlike jump motions in fragile glass-forming liquids: Breakdown of the Stokes-Einstein relation
• Deconstructing the glass transition through critical experiments on colloids
• The Kovacs effect in model glasses
• Dynamical Heterogeneities and Cooperative Motion in Smectic Liquid Crystals
• Microscopic Structural Relaxation in a Sheared Supercooled Colloidal Liquid
• Age and Structure of a Model Vapor-Deposited Glass
• Finite-Size Effects in a Supercooled Liquid
• Superionic UO2: A Model Anharmonic Crystalline Material
• Dynamic phase coexistence in glass-forming liquids
• Relationship between bond-breakage correlations and four-point correlations in heterogeneous glassy dynamics: Configuration changes and vibration modes
• Inherent structures and non-equilibrium dynamics of 1D constrained kinetic models: a comparison study
• Local structural excitations in model glasses
• Solid-that-flows picture of glass-forming liquids
• Multi-time density correlation functions in glass-forming liquids: Probing dynamical heterogeneity and its lifetime
• Brownian Dynamics simulations of aging colloidal gels
• Glass Transition in Supercooled Liquids with Medium Range Crystalline Order
• Dynamics of Random Packings in Granular Flow
• Locally favoured structures and dynamic length scales in a simple glass-former
• Confinement effects on glass forming liquids probed by DMA
• Evolution of displacements and strains in sheared amorphous solids
• Influence of Confinement on Dynamical Heterogeneities in Dense Colloidal Samples
• Heterogeneities in the Glassy State
• Manifestations of Dynamical Facilitation in Glassy Materials
• Crossover from normal to anomalous diffusion in field-aligned dipolar systems
• Characterization of MIPS in a suspension of repulsive Active Brownian Particles through dynamical features
• Equation of State and Entropy Theory Approach to Thermodynamic Scaling in Polymeric Glass-Forming Liquids
• Heterogeneous diffusion, viscosity and the Stokes Einstein relation in binary liquids
• Slow dynamics of a confined supercooled binary mixture: direct space analysis
• Dynamical facilitation governs glassy dynamics in suspensions of colloidal ellipsoids
• Conformational and Structural Relaxations of Poly(ethylene oxide) and Poly(propylene oxide) Melts: Molecular Dynamics Study of Spatial Heterogeneity, Cooperativity, and Correlated Forward-Backward Motion
• Chloroplasts in plant cells show active glassy behavior under low light conditions
• Local dielectric spectroscopy of near-surface glassy polymer dynamics
• Direct evidence of void induced structural relaxations in colloidal glass formers
• Unified percolation scenario for the $\alpha$ and $\beta$ processes in simple glass formers
• Non-linear dynamic response of glass-forming liquids to random pinning
• Fluctuations in the coarsening dynamics of the O(N) model: are they similar to those in glassy systems?
• Dynamical Heterogeneity in Lattice Glass Models
• Experimental verification of democratic particle motions by direct imaging of glassy colloidal systems
• Solidity of viscous liquids. IV. Density fluctuations
• Dynamical heterogeneity in a highly supercooled liquid: Consistent calculations of correlation length, intensity, and lifetime
• Collective Diffusion of Colloidal Hard Rods in Smectic Liquid Crystals: Effect of Particle Anisotropy
• Highly cooperative stress relaxation in two-dimensional soft colloidal crystals
• Multiple time scales hidden in heterogeneous dynamics of glass-forming liquids
• Plastic deformations in crystal, polycrystal, and glass in binary mixtures under shear: Collective yielding
• Dynamical Heterogeneity and Nonlinear Susceptibility in Short-Ranged Attractive Supercooled Liquids
• The glass transition of two-dimensional binary soft disk mixtures with large size ratios
• Correlation between vibrational anomalies and emergent anharmonicity of local potential energy landscape in metallic glasses
• Finite Size Scaling for the Glass Transition: the Role of a Static Length Scale
• Controlled neighbor exchanges drive glassy behavior, intermittency and cell streaming in epithelial tissues
• Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
• Glassy dynamics as a melting process (On melting dynamics and the glass transition, Part II)
• Collectivity of motion in undercooled liquids and amorphous solids
• Time scale separation and heterogeneous off-equilibrium dynamics in spin models over random graphs
• Microscopic picture of aging in SiO2
• Non-Gaussian Dynamics in Smectic Liquid Crystals of Parallel Hard Rods
• Translational and rotational dynamical heterogeneities in granular systems
• Pressure dependence of diffusion in simple glasses and supercooled liquids
• Thermal processing and enthalpy storage of an amorphous solid: a molecular dynamics study
• Subdiffusion and dynamical heterogeneities in a lattice glass model
• Theory of Activated Glassy Dynamics in Randomly Pinned Fluids
• Diffusion and viscosity in a supercooled polydisperse system
• Thermal origin of quasi-localised excitations in glasses
• Cooperative motions in a finite size model of liquid silica: an anomalous behavior
• Particle dynamics in fluids with random interactions
• Glassy aspects of melting dynamics (On melting dynamics and the glass transition, Part I)
• Lifetime of dynamic heterogeneities in a binary Lennard-Jones mixture
• Anisotropic spatially heterogeneous dynamics on the $\alpha$ and $\beta$ relaxation time scales studied via a four-point correlation function
• An atomistic view of grain boundary diffusion
• Lifetime of dynamical heterogeneity in a highly supercooled liquid
• Spatial correlations of elementary relaxation events in glass-forming liquids
• Distance-as-time in physical aging
• Local fluctuations in an aging glass
• Mode-Dependent nonequilibrium temperature in aging systems
• Understanding Stokes-Einstein Relation in Supercooled Liquids using Random Pinning
• A dynamical relation between dual finite temperature classical and zero temperature quantum systems: quantum critical jamming and quantum dynamical heterogeneities
• Dynamical Heterogeneity in a Highly Supercooled Liquid under a Sheared Situation
• Anisotropic spatially heterogeneous dynamics in a model glass-forming binary mixture
• The Origin of the Decoupling of Oxygen and Silicon Dynamics in Liquid Silica as Expressed by its Potential Energy Landscape
• Deformation of inherent structures to detect long-range correlations in supercooled liquids
• Local random configuration-tree theory for string repetition and facilitated dynamics of glass
• Slow dynamics of a confined supercooled binary mixture II: Q space analysis
• The cage effect in systems of hard spheres
• Self-Organized Criticality Below The Glass Transition
• Bubble kinematics in a sheared foam
• The mean-squared displacement of a molecule moving in a glassy system
• Frequency dependent heat capacity within a kinetic model of glassy dynamics
• Non-monotonic dynamic correlations beneath the surface of glass-forming liquids
• Stringlet Excitation Model of the Boson Peak
• Local influence of boundary conditions on a confined supercooled colloidal liquid
• Computer simulations of the glass transition and glassy materials
• Heterogeneities in systems with quenched disorder
• A minimal model for kinetic arrest
• Structural signatures of mobility on intermediate time scales in a supercooled fluid
• Correlated disorder in a well relaxed model binary glass through a local SU(2) bonding topology
• Diffusion coefficient power laws and defect-driven glassy dynamics in swap acceleration
• A phase space approach to supercooled liquids and a universal collapse of their viscosity
• Energy landscape picture of supercooled liquids: Application of a generalized random energy model
• Deeper penetration of surface effects on particle mobility than on hopping rate in glassy polymer films
• Elastic anomalies in glasses: the string theory understanding in the case of Glycerol and Silica
• Ageing and Relaxation in Glass Forming Systems
• Insights from Single-File Diffusion into Cooperativity in Higher Dimensions
• Slow dynamics and aging in a non-randomly frustrated spin system
• Macroscopic Length Correlations in Non-Equilibrium Systems and Their Possible Realizatons
• Different glassy characteristics are related to either caging or dynamical heterogeneity
• Revisiting the Concept of Activation in Supercooled Liquids
• Numerical simulations of granular dynamics II. Particle dynamics in a shaken granular material
• Connecting real glasses to mean-field models
• Local Plastic Response and Slow Heterogeneous Dynamics of Supercooled Liquids
• Structural Probe of a Glass Forming Liquid: Generalized Compressibility
• Properties of ideal Gaussian glass-forming systems
• Dynamical heterogeneity in a glass forming ideal gas
• Effect of chain stiffness on the dynamics and microstructure of crystallizable bead-spring polymer melts
• Observation of Single Transits in Supercooled Monatomic Liquids
• Dependence of the Atomic Level Green-Kubo Stress Correlation Function on Wavevector and Frequency. Molecular Dynamics Results from a Model Liquid
• Multiple time scales from hard local constraints: glassiness without disorder
• A Free Energy Landscape for Cage Breaking of Three Hard Disks
• Disentangling $\alpha$ and $\beta$ relaxation in orientationally disordered crystals with theory and experiments
• Invited review: Effect of temperature on a granular pile
• Normal modes, and acoustic properties, of an elastic solid with line defects
• Dynamical Susceptibilities Near Ideal Glass Transitions
• Self-organization of supercooled liquids confined inside nano-porous materials
• Glassy Dynamics from First-Principles Simulations
• Cooperative strings and glassy dynamics in various confined geometries
• Spatiotemporal intermittency and localized dynamic fluctuations upon approaching the glass transition
• Unraveling the glass-like dynamic heterogeneity in ring polymer melts: From semi-flexible to stiff chain
• A toy model mimicking cage effect, structural fluctuations and kinetic constraints in supercooled liquids
• Dynamic Length Scales in Glass-Forming Liquids: A Inhomogeneous Molecular Dynamics Simulation Approach
• Enhanced diffusion in finite-size simulations of a fragile diatomic glass former
• Heterogeneities and Topological Defects in Two-Dimensional Pinned Liquids
• A General Structural Order Parameter for the Amorphous Solidification of a Supercooled Liquid
• Dispersionless Flat Mode and Vibrational Anomaly in Active Brownian Vibrators Induced by String-like Dynamical Defects
• Anomalous statistics in the Langevin equation with fluctuating diffusivity: from Brownian yet non-Gaussian diffusion to anomalous diffusion and ergodicity breaking
• On the mechanism of the highly viscous flow
• A Dramatically Growing Shear Rigidity Length Scale in a Supercooled Glass Former ($NiZ{r}_2$)
• Connecting microscopic simulations with kinetically constrained models of glasses
• Formation of double glass in binary mixtures of anisotropic particles: Dynamic heterogeneities in rotations and displacements
• Discovery of a paired Gaussian and long-tailed distribution of potential energies in nanoglasses
• Spatiotemporal heterogeneity of local free volumes in highly supercooled liquid
• Defect Fluctuations and Lifetimes in Disordered Yukawa Systems
• Static and Dynamic Properties of Two Dimensional Coulomb Clusters
• Fluctuations of two-time quantities and non-linear response functions
• From particles to spins: Eulerian formulation of supercooled liquids and glasses
• Granular packing as model glass formers
• Specific properties of supercooled water in light of water anomalies
• Efficient $d$-dimensional molecular dynamics simulations for studies of the glass-jamming transition
• Spatio-temporal correlations in Wigner molecules
• Pair dynamics in a glass forming binary mixture: Simulations and theory
• Size dependence of dynamic fluctuations in liquid and supercooled water
• Visualizing Free Energy Landscapes for Four Hard Disks
• Dynamical Heterogeneity in Supercooled Water and its Spectroscopic Fingerprints
• Atomistic mechanisms of dynamics in a two-dimensional dodecagonal quasicrystal
• Automated characterization of spatial and dynamical heterogeneity in supercooled liquids via implementation of Machine Learning
• Spectral responses in granular compaction
• Finite-size effects and intermittency in a simple aging system
• Emergence of a Hump in the Cubic Dielectric Response of Glycerol
• Mutual Information in Molecular and Macromolecular Systems
• Following microscopic motion in a two dimensional glass-forming binary fluid
• Viscosity, breakdown of Stokes-Einstein relation and dynamical heterogeneity in supercooled liquid Ge${}_2$Sb${}_2$Te${}_5$ from simulations with a neural network potential
• Collisional Statistics and Dynamics of 2D Hard-Disk Systems: From Fluid to Solid
• Dynamical behavior of a lattice glass model on a random graph: comparison with Mode Coupling Theory
• MD Simulations of Charged Binary Mixtures Reveal a Generic Relation Between High- and Low-Temperature Behavior
• How do packing defects modify the cooperative motions in supercooled liquids ?
• Temperature Dependent Heterogeneous Rotational Correlation in Lipids
• Significance of the nature of disorder on the universal features of the spatio-temporal correlations of two-dimensional Coulomb-clusters
• Revisiting the question of what instantaneous normal modes tell us about liquid dynamics
• The anomalous density of states and quasi-localized vibration through homogeneous thermalization of an inhomogeneous elastic system
• Quasi-One Dimensional Models for Glassy Dynamics
• The origin of strings and rings in the atomic dynamics of disordered systems
• Neglecting polydispersity degrades propensity measurements in supercooled liquids
• Simulations of Noise in Disordered Systems
• Evidence for compact cooperatively rearranging regions in a supercooled liquid
• The Spot Model for random-packing dynamics
• The slow short-time motions of phospholipid molecules with a focus on the influence of multiple scattering and fitting artifacts
• Cooperative jump motions of jammed particles in a one-dimensional periodic potential
• Surface relaxation of vapour-depositing colloidal glasses
• Unifying atoms and colloids near the glass transition through bond-order topology
• Statistics of Thermal Avalanches in Driven Amorphous Systems
• A divergent correlation length in off-equilibrium glasses
• Cooperative Ion Conduction Enabled by Site Percolation in Random Substitutional Crystals