Fluctuation forces stabilizing two kinds of staircases in chiral tilted fluid smectics frustrated between ferro- and antiferro-electricity

A. Fukuda, H. Hakoi, M. Sato, Mikhail Osipov

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Conventional dispersion and steric interactions between mesogenic molecules generally promote SmC*, while the interlayer orientational correlation between transverse molecular dipoles stabilizes anticlinic SmC A *. Ferroelectric and antiferroelectric orders thus produced are frustrated because of the X-Y freedom and the low-energy barrier between them. We can naturally explain not only a series of subphases between SmC A * and SmC* but also the staircase character of SmC f * emerging just below SmA by using the Casimir type long-range interaction due to polarization fluctuations, if we take account of the discrete flexoelectric polarization appropriately in addition to the ordinary one.
Original languageEnglish
Pages (from-to)169-187
Number of pages19
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 18 Oct 2003
Event1st Italian-Japanese Workshop on Liquid Crystals/5th National Meetin gof the Italian-Liquid-Crystal-Society - Naples, Italy
Duration: 7 Jul 200214 Jul 2002


  • fluid smectics
  • fluid dynamics
  • electricity
  • flexoelectric polarization
  • phase transition
  • frustrated smectics
  • subphase
  • devil's staircase
  • casimir force
  • discrete flexoelectric polarization

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