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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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File | Description | Size | Format | |
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2011_Liquid Crystals_V38_p663.pdf Restricted Access | Restricted access | 666.69 kB | Adobe PDF | View/Open Request a copy |
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