Nonlinear dielectric spectroscopy of MHPOBC

Koji Tanaka, Masatoshi Ichikawa, Yasuyuki Kimura

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1 Citation (Scopus)


We apply nonlinear dielectric spectroscopy to an antiferroelectric liquid crystal MHPOBC at various smectic sub-phases. In the SmC* phase, the third-order nonlinear dielectric spectrum 3* is found to be composed of the contributions from ferroelectric soft mode and soft mode of the SmC* phase. The obtained spectrum is well ascribable by the theoretical one calculated by the Landau-type of phenomenological theory. In the SmC* phase, 3* shows a complicated form, and is different from one observed in usual ferroelectric liquid crystals. In the SmCFI1*( SmC*) phase, ferrielectric Goldstone mode with broad distribution of relaxation times is observed in both 1* and 3*.

Original languageEnglish
Pages (from-to)195/[689]-204/[698]
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - Jan 2007

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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