Volume 114, Number 5, June 2016
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||04 July 2016|
Effect of ferroelectric nanoparticles on the isotropic-smectic-A phase transition
Department of Physics, Government College of Engineering and Textile Technology - 12 William Carey Road, Serampore, Hooghly-712201, India
Received: 28 March 2016
Accepted: 9 June 2016
Recent experimental studies have shown that ferroelectric nanoparticles play an important role on smectic liquid crystals. These include the weakly discontinuous nature of the isotropic-smectic-A transition, the decrease of the temperature metric discontinuity, the decrease of the dielectric constant and a slight increase of the transition temperature. We described all these experimental observations within phenomenological theory. The impact of ferroelectric nanoparticles on the isotropic-smectic-A transition temperature, Kerr constant and non-linear dielectric effect is discussed. The theoretical predictions were found to be in good qualitative agreement with the experimental results.
PACS: 64.70.M- – Transitions in liquid crystals / 61.30.-v – Liquid crystals / 05.70.Fh – Phase transitions: general studies
© EPLA, 2016
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