Eur. Phys. J. E (2012) 35: 28
https://doi.org/10.1140/epje/i2012-12028-7

Regular Article

Theoretical model of the frequency and temperature dependence of the complex non-linear dielectric effect in the isotropic phase above the isotropic-smectic-A phase transition

Department of Physics, Presidency University, 86/1 College Street, 700 073, Kolkata, India

^* e-mail: pkmuk1966@gmail.com

Received: 8 February 2012
Revised: 19 March 2012
Accepted: 4 April 2012
Published online: 18 April 2012

Abstract

Using the Landau model, the temperature and frequency dependence of the complex non-linear dielectric effect in the isotropic phase above the isotropic-smectic-A phase transition is calculated. Comparing the results of the calculations with existing data, we finally conclude that the model provides a description of the isotropic-smectic-A transition that takes all experimentally known features of the non-linear dielectric effect in the isotropic phase into account in a qualitatively correct way.