Martensitic transition in a confined colloidal suspension

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

    Research output: Contribution to journalArticle

    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
    Publication statusPublished - 1995

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    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Weiss, J. A., Oxtoby, D. W., Grier, D. G., & Murray, C. A. (1995). Martensitic transition in a confined colloidal suspension. The Journal of chemical physics, 103(3), 1180-1190.