Martensitic transition in a confined colloidal suspension

Jessica A. Weiss, David W. Oxtoby, David G. Grier, Cherry A. Murray

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

We describe a nonequilibrium phase transition in a geometrically confined charge-stabilized colloidal suspension. The equilibrium configuration for the spheres in this system is a two-layer square lattice, equivalent to two layers of a body-centered cubic (bcc) crystal. After electrophoretic shear melting, the suspension rapidly crystallizes to a buckled single-layer triangular lattice. This well-ordered solid phase subsequently undergoes a martensitic phase transition back to the two-layer square lattice. We use high resolution digital video microscopy to follow the emergence and evolution of order during these phase transitions.

Original languageEnglish (US)
Pages (from-to)1180-1190
Number of pages11
JournalThe Journal of chemical physics
Volume103
Issue number3
DOIs
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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