Nonlinear dielectric response of antiferroelectric liquid crystals

Hiroshi Isono, Yasuyuki Kimura, Reinosuke Hayakawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We measure the nonlinear dielectric response of antiferroelectric liquid crystals in the SmC A*and SmC α*phase. In the SmC A*phase, the spectrum of the third-order nonlinear permittivity ε 3*shows a Debye-type relaxation and is ascribed to the deformation of helical structure due to the coupling between dielectric anisotropy and electric field. In the SmC α*phase, the spectrum of ε 3*shows a complicated form and is explained by the Landau-type phenomenological free-energy which is composed of the ferroelectric and the antiferroelectric order parameter.

Original languageEnglish
Pages (from-to)219-228
Number of pages10
Publication statusPublished - Jan 1 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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