Antiferroelectric Low Molar Mass Organosiloxane Liquid Crystals: A Phenomenological Model

C. Carboni, H. J. Coles*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


We have established that the antiferroelectric order observed in low molar mass organosiloxane liquid crystal materials with chiral bi-mesogen molecules is due to the bent conformation of the molecules rather than to co-operative antiferroelectric interactions. The switching between antiferroelectric and ferroelectric order involves a change of conformation of the molecules. We show that in mixtures of antiferroelectric and ferroelectric molecules this concept can be used to vary continuously the threshold field for antiferroelectric switching. We propose a simple model to describe the behaviour of the materials and to predict the threshold field.

Original languageEnglish
Pages (from-to)349-356
Number of pages8
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Publication statusPublished - 1999


  • Antiferroelectric
  • Organosiloxane
  • Thresholdless switching

ASJC Scopus subject areas

  • Condensed Matter Physics


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