Flexible confinement leads to multiple relaxation regimes in glassy colloidal liquids.

Understanding relaxation of supercooled fluids is a major challenge and confining such systems can lead to bewildering behaviour. Here, we exploit an optically confined colloidal model system in which we use reduced pressure as a control parameter. The dynamics of the system are "Arrhenius" at low and moderate pressure, but at higher pressures relaxation is faster than expected. We associate this faster relaxation with a decrease in density adjacent to the confining boundary due to local ordering in the system enabled by the flexible wall.

• Publication year

  2015

• Venue

  Journal of Chemical Physics

• Publication date

  2015-01-13

• Fields of study

  Materials Science, Physics, Medicine

• Identifiers
  DOI 10.1063/1.4905472arXiv 2011.04104PMID 25591370
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Strong geometric frustration in model glassformers

  2014cited by this paper
• Physics in ordered and disordered colloidal matter composed of poly(N-isopropylacrylamide) microgel particles

  2014cited by this paper
• Metastable liquid–liquid transition in a molecular model of water

  2014cited by this paper
• Boundary Mobility Controls Glassiness in Confined Colloidal Liquids

  2014cited by this paper
• Communication: radial distribution functions in a two-dimensional binary colloidal hard sphere system.

  2014cited by this paper
• The role of local structure in dynamical arrest

  2014cited by this paper
• A nano-scale free volume perspective on the glass transition of supercooled water in confinement

  2014cited by this paper
• Direct measurement of osmotic pressure via adaptive confinement of quasi hard disc colloids

  2013cited by this paper
• The effect of boundary adaptivity on hexagonal ordering and bistability in circularly confined quasi hard discs.

  2013cited by this paper
• Effect of nanoconfinement on polymer dynamics: surface layers and interphases.

  2013cited by this paper
• Frustrated crystallisation and melting in two-dimensional pentagonal confinement

  2013cited by this paper
• Confinement as a tool to probe amorphous order.

  2013cited by this paper
• Roles of icosahedral and crystal-like order in the hard spheres glass transition

  2012cited by this paper
• Using mutual information to measure order in model glass formers.

  2012cited by this paper
• In search of colloidal hard spheres

  2012cited by this paper
• Phase separation dynamics in colloid–polymer mixtures: the effect of interaction range

  2012cited by this paper
• First-order phase transition in a model glass former: coupling of local structure and dynamics.

  2012cited by this paper
• Structural signature of slow dynamics and dynamic heterogeneity in two-dimensional colloidal liquids: glassy structural order

  2011cited by this paper
• The physics of the colloidal glass transition

  2011cited by this paper
• Static point-to-set correlations in glass-forming liquids.

  2011cited by this paper
• Dynamics of nanoconfined supercooled liquids.

  2011cited by this paper
• Structural origin of enhanced slow dynamics near a wall in glass-forming systems.

  2011cited by this paper
• Two-step melting in two dimensions: first-order liquid-hexatic transition.

  2011cited by this paper
• The putative liquid-liquid transition is a liquid-solid transition in atomistic models of water.

  2011cited by this paper
• Correlation between dynamical heterogeneities, structure and potential-energy distribution in a 2D amorphous solid

  2011cited by this paper
• Theoretical perspective on the glass transition and amorphous materials

  2010cited by this paper
• Evidence for a simple monatomic ideal glass former: the thermodynamic glass transition from a stable liquid phase.

  2010cited by this paper
• Transport properties of glass-forming liquids suggest that dynamic crossover temperature is as important as the glass transition temperature

  2010cited by this paper
• Models of macromolecular crowding effects and the need for quantitative comparisons with experiment.

  2010cited by this paper
• Increasing trap stiffness with position clamping in holographic optical tweezers.

  2009cited by this paper
• Irreversible rearrangements, correlated domains, and local structure in aging glasses.

  2009cited by this paper
• Equivalence of glass transition and colloidal glass transition in the hard-sphere limit.

  2009cited by this paper
• Spatiotemporal hierarchy of relaxation events, dynamical heterogeneities, and structural reorganization in a supercooled liquid.

  2009cited by this paper
• Dynamics on the way to forming glass: bubbles in space-time.

  2009cited by this paper
• Glass transition of dense fluids of hard and compressible spheres.

  2009cited by this paper
• Predicting the effective temperature of a glass.

  2009cited by this paper
• Supercooled liquids for pedestrians

  2009cited by this paper
• Dynamics and structure of an aging binary colloidal glass.

  2008cited by this paper
• Probing the equilibrium dynamics of colloidal hard spheres above the mode-coupling glass transition.

  2008cited by this paper
• Direct observation of medium-range crystalline order in granular liquids near the glass transition.

  2008cited by this paper
• Direct observation of a local structural mechanism for dynamic arrest.

  2008cited by this paper
• Correlation between dynamic heterogeneity and medium-range order in two-dimensional glass-forming liquids.

  2007cited by this paper
• Polyamorphism and liquid–liquid phase transitions: challenges for experiment and theory

  2007cited by this paper
• Theory of structural glasses and supercooled liquids.

  2006cited by this paper
• Colloidal glass transition observed in confinement.

  2006cited by this paper
• Mosaic multistate scenario versus one-state description of supercooled liquids.

  2006cited by this paper
• Effects of confinement on freezing and melting

  2006cited by this paper
• Effects of confinement on material behaviour at the nanometre size scale

  2005cited by this paper
• Slow dynamics in glassy soft matter

  2005cited by this paper
• Two-order-parameter model of the liquid-glass transition. I. Relation between glass transition and crystallization

  2005cited by this paper
• Simulated silica

  2004cited by this paper
• Dynamical heterogeneities close to a colloidal gel.

  2004cited by this paper
• Finite-size and surface effects on the glass transition of liquid toluene confined in cylindrical mesopores

  2002cited by this paper
• Propagation of the polyamorphic transition of ice and the liquid–liquid critical point

  2002cited by this paper
• The relaxation dynamics of a simple glass former confined in a pore

  2000cited by this paper
• Freezing in finite systems: hard discs in circular cavities

  1998cited by this paper
• Dielectric studies of glass transition in confined propylene glycol

  1998cited by this paper
• Glass Transition in Liquids: Two versus Three-Dimensional Confinement

  1998cited by this paper
• The relationship between liquid, supercooled and glassy water

  1998cited by this paper
• Length Scale of Cooperativity in the Dynamic Glass Transition

  1997cited by this paper
• Formation of Glasses from Liquids and Biopolymers

  1995cited by this paper
• Dielectric studies of the glass transition in porous media.

  1994cited by this paper
• Scaling concepts for the dynamics of viscous liquids near an ideal glassy state.

  1989cited by this paper
• What is "liquid"? Understanding the states of matter

  1976cited by this paper
• On the Temperature Dependence of Cooperative Relaxation Properties in Glass‐Forming Liquids

  1965cited by this paper
• Increasing Trap Stiffness with Position Clamping in Holographic Optical Tweezers

  year unknowncited by this paper

• Colloidal hard spheres: Triumphs, challenges, and mysteries

  2023cites this paper
• Computer simulations and mode-coupling theory of glass-forming confined hard-sphere fluids.

  2023cites this paper
• The glass transition in molecules, colloids and grains: universality and specificity

  2022cites this paper
• The rheology of confined colloidal hard disks.

  2022cites this paper
• Isomorphs in nanoconfined liquids

  2021cites this paper
• Ordering and Dynamics of Interacting Colloidal Particles under Soft Confinement

  2021influential citation
• Confinement-induced demixing and crystallization

  2020cites this paper
• Dynamical properties of densely packed confined hard-sphere fluids.

  2020cites this paper
• Tagged-particle dynamics in confined colloidal liquids.

  2020cites this paper
• A Journey Through the Landscapes of Small Particles in Binary Colloidal Assemblies: Unveiling Structural Transitions from Isolated Particles to Clusters upon Variation in Composition

  2019cites this paper
• Understanding, predicting, and tuning the fragility of vitrimeric polymers

  2019cites this paper
• Magic number colloidal clusters as minimum free energy structures

  2018cites this paper
• The race to the bottom: approaching the ideal glass?

  2017cites this paper
• Nonergodicity parameters of confined hard-sphere glasses.

  2017cites this paper
• Colloidal suspensions of C-particles: Entanglement, percolation and microrheology.

  2016cites this paper
• Correlation between crystalline order and vitrification in colloidal monolayers

  2014cites this paper