Theory of layer structure in ferroelectric liquid crystal devices in applied electric fields

M. B. Hamaneh, H. F. Gleeson, P. L. Taylor

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A model for the free energy of a ferroelectric liquid crystal which was formed by cooling a sample from the smectic-A phase between parallel substrates, was proposed. A sufficiently large electric field was applied to a device which contained an antiferroelectric, intermediate, or ferroelectric liquid crystal. Under these conditions the chevron structure of the crystal was transformed into a bookshelf geometry. The results show that in the model proposed, it is a parameter related to the layer compression modulus that is the principal factor in determining the nature of the field-induced transition from chevrons to flat layers.
    Original languageEnglish
    Article number051704
    Pages (from-to)517041-517048
    Number of pages7
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Volume68
    Issue number5
    DOIs
    Publication statusPublished - Nov 2003

    Keywords

    • Liquid crystals (ferroelec.; theory of layer structure in ferroelec. liq. crystal devices in applied elec. fields); Ferroelectric materials (liq.-crystal; theory of layer structure in ferroelec. liq. crystal devices in applied elec. fields); Electric field effects; Free energy; Liquid crystal displays (theory of layer structure in ferroelec. liq. crystal devices in applied elec. fields)

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