Nonlinear dielectric response of antiferroelectric liquid crystals

Hiroshi Isono, Yasuyuki Kimura, Reinosuke Hayakawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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
JournalFerroelectrics
Volume277
DOIs
Publication statusPublished - Jan 1 2002
Externally publishedYes

Fingerprint

Liquid Crystals
Liquid crystals
liquid crystals
Free energy
Ferroelectric materials
Anisotropy
Permittivity
free energy
Electric fields
permittivity
anisotropy
electric fields

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nonlinear dielectric response of antiferroelectric liquid crystals. / Isono, Hiroshi; Kimura, Yasuyuki; Hayakawa, Reinosuke.

In: Ferroelectrics, Vol. 277, 01.01.2002, p. 219-228.

Research output: Contribution to journalArticle

Isono, Hiroshi ; Kimura, Yasuyuki ; Hayakawa, Reinosuke. / Nonlinear dielectric response of antiferroelectric liquid crystals. In: Ferroelectrics. 2002 ; Vol. 277. pp. 219-228.
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