Title:	Discovery of a novel ferrielectric phase of five-layer periodicity in binary mixtures of chiral smectic liquid crystals exhibiting unusual reversed phase sequence
Authors:	Chandani, A.D.L. Fukuda, Atsuo Kumar, Sandeep Vij, J.K.
Keywords:	anti ferroelectrics chiral smectics ferrielectric phase of five layer periodicity unusual reversed phase sequence
Issue Date:	May-2011
Publisher:	Taylor & Francis
Citation:	Liquid Crystals, 2011, Vol.38, p663
Abstract:	In a binary mixture system of ferroelectric and antiferroelectric liquid crystals whose major component shows an unusual reversed phase sequence of SmC∗A(1/2) − SmC∗, a new phase with ferrielectric order of five layers has been discovered by the electric field-induced birefringence (EFIB) measurements. The EFIB was measured using a photo-elastic modulator (PEM) set-up and by applying an in-plane electric field to a homeotropic aligned cell filled with the binary mixtures of compounds with ferroelectric and antiferroelectric compounds. The contours of constant birefringence in the electric field–temperature (E–T) phase diagrams clearly indicate a distinct region corresponding to a new phase bordering the four-layer SmC∗(1/2) on the low temperature side and SmC∗α on the high temperature side. This new phase is unambiguously assigned to SmC∗(3/5) whose structure has been calculated by Osipov and Gorkunov.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/4085
ISSN:	0267-8292 1366-5855 (online)
Alternative Location:	http://dx.doi.org/10.1080/02678292.2011.566943
Copyright:	2011 Taylor & Francis
Appears in Collections:	Research Papers (SCM)

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