Digital imaging studies of submicron colloidal spheres confined into a single layer between two smooth glass plates: Two dimensional melting

C. A. Murray, D. H. Van Winkle, R. A. Wenk

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Digital imaging is used to study the particle positions and trajectories of a layer of highly charged 0.3 μm diameter polystyrene spheres in water suspension, rigidly confined into two-dimensions between two smooth glass plates. As the in-plane sphere density is varied, we find a two-stage melting transition in which we observe separate divergences in the orientational and translational order at different densities, separated by roughly 4%. The topological defect statistics are complex, but qualitatively consistent with the predictions of Halperin and Nelson.

Original languageEnglish (US)
Pages (from-to)93-126
Number of pages34
JournalPhase Transitions
Volume21
Issue number2-4
DOIs
StatePublished - May 1990
Externally publishedYes

Keywords

  • Kosterlitz-Thouless phase transition
  • Two-dimensional melting
  • colloids
  • digital imaging

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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