Multiple glassy states in a simple model system

K N Pham, A M Puertas, J Bergenholtz, S U Egelhaaf, A Moussaid, Peter Pusey, Andrew B Schofield, Michael Cates, M Fuchs, Wilson Poon

Research output: Contribution to journalArticlepeer-review

Abstract

Experiments, theory, and simulation were used to study glass formation in a simple model system composed of hard spheres with short-range attraction ("sticky hard spheres"). The experiments, using well-characterized colloids, revealed a reentrant glass transition line. Mode-coupling theory calculations and molecular dynamics simulations suggest that the reentrance is due to the existence of two qualitatively different glassy states: one dominated by repulsion (with structural arrest due to caging) and the other by attraction (with structural arrest due to bonding). This picture is consistent with a study of the particle dynamics in the colloid using dynamic light scattering.

Original languageEnglish
Pages (from-to)104-106
Number of pages3
JournalScience
Volume296
Issue number5565
DOIs
Publication statusPublished - 5 Apr 2002

Keywords

  • DYNAMIC LIGHT-SCATTERING
  • SUPERCOOLED LIQUIDS
  • COUPLING-THEORY
  • PHASE-BEHAVIOR
  • TRANSITION
  • SUSPENSIONS
  • MIXTURES
  • SPHERES

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