Nonlinear dielectric relaxation spectroscopy of ferroelectric liquid crystals in the smectic C* phase

Yasuyuki Kimura, Shun Hara, Reinosuke Hayakawa

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

We have applied a nonlinear dielectric relaxation spectroscopy to the Goldstone mode of ferroelectric liquid crystals (FLCs) in the chiral smectic C phase. The linear spectrum shows a single relaxation of Debye type. The third and fifth-order nonlinear spectra show extended forms of Debye type to the nonlinear cases. We have also calculated the nonlinear dielectric spectra theoretically by means of the torque balance equation describing the dynamics of FLCs. The theoretical spectra in which we have taken into the distribution of the relaxation times make good agreement with the measured ones. We also discuss the application of nonlinear dielectric relaxation spectroscopy to the simultaneous measurement of material constants of FLCs.

Original languageEnglish
Pages (from-to)61-70
Number of pages10
JournalFerroelectrics
Volume245
Issue number1-4
DOIs
Publication statusPublished - 2000
Event7th International Conference on Ferroelectric Liquid Crystals - Darmstadt, Ger
Duration: Aug 29 1999Sep 3 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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