Boundary Mobility Controls Glassiness in Confined Colloidal Liquids

We use colloidal suspensions encapsulated in emulsion droplets to model confined glass-forming liquids with tunable boundary mobility. We show dynamics in these idealized systems are governed by physical interactions with the boundary. Gradients in dynamics are present for more mobile boundaries, whereas for less mobile boundaries gradients are almost entirely suppressed. Motions in a system are not isotropic, but have a strong directional dependence with respect to the boundary. These findings bring into question the ability of conventional quantities to adequately describe confined glasses.

• Publication year

  2014

• Venue

  Physical Review Letters

• Publication date

  2014-05-05

• Fields of study

  Materials Science, Physics

• Identifiers
  DOI 10.1103/PhysRevLett.112.218302arXiv 1405.0753
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• No references are available for this paper.

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