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Optic, electrooptic and dielectric properties of novel antiferroelectric liquid crystal compounds

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Author(s)

  • P Jagemalm
  • J P F Lagerwall
  • A Dahlgren
  • L Komitov
  • A S Matharu
  • C Grover
  • F Gouda
  • A A Kutub

Department/unit(s)

Publication details

JournalIEEE Transaction of Ultrasonics Ferroelectrics and Frequency Control
DatePublished - 2000
Issue number1-4
Volume244
Number of pages11
Pages (from-to)447-457
Original languageEnglish

Abstract

The optic, electrooptic and dielectric spectroscopy characterisation of novel four-ring thiophene-based chiral eaters comprising suitably 5,5'-disubstituted 2,2'-bithiophene (antiferroelectrics) is reported. The two compounds exhibit interesting hysterises in their phase sequences, and we show that even whole phases (e.g. their relatively wide ferri-phases) may be suppressed by the surface interactions in thin cells.

    Research areas

  • antiferroelectric, ferrielectric, ferroelectric, dielectric spectroscopy, pitch, PHASES

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