Dynamical properties of densely packed confined hard-sphere fluids
arXiv:2006.05771 · doi:10.1103/PhysRevE.102.012612
Abstract
Numerical solutions of the mode-coupling theory (MCT) equations for a hard-sphere fluid confined between two parallel hard walls are elaborated. The governing equations feature multiple parallel relaxation channels which significantly complicate their numerical integration. We investigate the intermediate scattering functions and the susceptibility spectra close to structural arrest and compare to an asymptotic analysis of the MCT equations. We corroborate that the data converge in the -scaling regime to two asymptotic power laws, viz. the critical decay and the von Schweidler law. The numerical results reveal a non-monotonic dependence of the power-law exponents on the slab width and a non-trivial kink in the low-frequency susceptibility spectra. We also find qualitative agreement of these theoretical results to event-driven molecular-dynamics simulations of polydisperse hard-sphere system. In particular, the non-trivial dependence of the dynamical properties on the slab width is well reproduced.
References in corpus (42)
- Scaling behavior in the -relaxation regime of a supercooled Lennard-Jones mixture
- Cooperative motion and growing length scales in supercooled confined liquids
- Reduction of the Glass Transition Temperature in Polymer Films: A Molecular-Dynamics Study
- Mode-Coupling Theory of the Glass Transition: A Primer
- Layering and position-dependent diffusive dynamics of confined fluids
- Broadband Dielectric Spectroscopy on Glass-Forming Propylene Carbonate
- DynamO: A free O(N) general event-driven molecular-dynamics simulator
- Thermodynamics predicts how confinement modifies hard-sphere dynamics
- Colloidal glass transition observed in confinement
- Supercooled Water and the Kinetic Glass Transition II: Collective Dynamics
- The relaxation dynamics of a simple glass former confined in a pore
- The Debye-Waller factor of liquid silica: Theory and simulation
- Glass Transition in Confined Geometry
- Dynamic Glass Transition in Two Dimensions
- Predicting how nanoconfinement changes the relaxation time of a supercooled liquid
- Universal and non-universal features of glassy relaxation in propylene carbonate
- Tuning density profiles and mobility of inhomogeneous fluids
- Slow Dynamics in Ion-Conducting Sodium Silicate Melts: Simulation and Mode-Coupling Theory
- Multiple reentrant glass transitions in confined hard-sphere glasses
- Mode-coupling theory of the glass transition for confined fluids
- Fluids in Extreme Confinement
- Molecular Dynamics Computer Simulation of the Dynamics of Supercooled Silica
- Boundary mobility controls glassiness of confined colloidal liquids
- The Cole-Cole Law for Critical Dynamics in Glass-Forming Liquids
- Structures and dynamics of glass-forming colloidal liquids under spherical confinement
- Anisotropic de Gennes narrowing in confined fluids
- Cofinement, entropy, and single-particle dynamics of equilibrium hard-sphere mixtures
- Impact of surface roughness on diffusion of confined fluids
- Local order variations in confined hard-sphere fluids
- Mode-coupling theory for multiple decay channels
- Structural relaxation in orthoterphenyl: a schematic mode coupling theory model analysis
- Tagged-particle motion in a dense confined liquid
- Structural quantities of quasi-two-dimensional fluids
- Non-monotonic effect of confinement on the glass transition
- Diverging time scale in the dimensional crossover for liquids in strong confinement
- Nonergodicity parameters of confined hard-sphere glasses
- The impact range for smooth wall-liquid interactions in nanoconfined liquids
- Flexible confinement leads to multiple relaxation regimes in glassy colloidal liquids
- Glassy dynamics in confinement: Planar and bulk limit of the mode-coupling theory
- Mode-coupling theory of the glass transition for colloidal liquids in slit geometry
- Static properties of quasi-confined hard-sphere fluids
- Scaling equations for mode-coupling theories with multiple decay channels
Cited by in corpus (8)
- Structural properties of liquids in extreme confinement
- Dynamic properties of quasi-confined colloidal hard-sphere liquids near the glass transition
- Computer Simulations and Mode-Coupling Theory of Glass-Forming Confined Hard-Sphere Fluids
- Tagged-particle dynamics in confined colloidal liquids
- Glass transition in colloidal monolayers controlled by light-induced caging
- Mode-coupling theory of the glass transition for a liquid in a periodic potential
- Tagged-particle motion in quasi-confined colloidal hard-sphere liquids
- Inhomogeneous Diffusion in Confined Colloidal Suspensions