Calculation of the dielectric constant as a function of temperature near the smectic AC* phase transition in ferroelectric liquid crystals

Kilit E., YURTSEVEN H. H.

FERROELECTRICS, vol.365, pp.288-300, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 365
  • Publication Date: 2008
  • Doi Number: 10.1080/00150190802064318
  • Journal Name: FERROELECTRICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.288-300
  • Middle East Technical University Affiliated: Yes

Abstract

We calculate here. the dielectric constant E as a function of temperature for the AC* phase transition of a ferroelectric liquid crystal using a mean field model. Using the values of the polarization P and the tilt angle theta, calculated from the mean field model with the P-2 theta(2) coupling for 4-(3-methyl-2-chlorobutanoyloxy)-4'-heptyloxybiphenyl, the dielectric constant E is calculated in the smectic C* phase of this ferroelectric liquid crystal at various temperatures at constant electric fields.