Analysis of the Dielectric Constant as a Function of Temperature at Constant Electric Fields for the Smectic A-Smectic G Transition in A6 | Zendy

H. Yurtseven | Zendy; E. Kilit | Zendy

Open Access

Analysis of the Dielectric Constant as a Function of Temperature at Constant Electric Fields for the Smectic A-Smectic G Transition in A6

Author(s) -

H. Yurtseven,

E. Kilit

Publication year - 2012

Publication title -

isrn condensed matter physics

Language(s) - English

Resource type - Journals

eISSN - 2090-7400

pISSN - 2090-7397

DOI - 10.5402/2012/969830

Subject(s) - ferroelectricity , dielectric , condensed matter physics , electric field , liquid crystal , quadrupole , constant (computer programming) , field (mathematics) , materials science , transition temperature , physics , quantum mechanics , mathematics , optoelectronics , superconductivity , computer science , pure mathematics , programming language

The temperature dependence of the dielectric constant is studied under some fixed electric fields for the smectic G- (tilted-) smectic A (orthogonal) transition of the ferroelectric liquid crystal of compound A6. For this study, a mean field model with the quadrupole-quadrupole interactions is introduced. By fitting the inverse dielectric susceptibility from the mean field model to the experimental data from the literature, the observed behaviour of the dielectric constant is described satisfactorily for the smectic AG transition in A6. The transition temperature induced by an external electric field is also discussed for this ferroelectric compound.

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