Temperature dependence of the polarization and tilt angle under an electric field close to the smectic AC* phase transition in a ferroelectric liquid crystal

YURTSEVEN H. H., Kilit E.

FERROELECTRICS, vol.365, pp.280-289, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 365
  • Publication Date: 2008
  • Doi Number: 10.1080/00150190802064102
  • Journal Name: FERROELECTRICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.280-289
  • Middle East Technical University Affiliated: Yes

Abstract

The temperature dependence of the polarization P and the tilt angle theta is calculated here in the presence of a constant electric field near the smectic AC* phase transition of a ferroelectric liquid crystal using a mean field model. We demonstrate here the temperature dependence of P and theta under some fixed electric fields for the ferroelectric liquid crystal of 4-(3-methyl-2-chlorobutanoyloxy)-4'-heptyloxybiphenyl. Our predicted values of P and theta at various temperatures under fixed electric fields, follow similar critical behaviour as predicted for zero electric field from the mean field model near the smectic AC* phase transition in 4-(3-methyl-2-chlorobutanoyloxy)-4'-heptyloxybiphenyl.