A simple electro-optic technique for studying the electroclinic effect in the smectic A∗ phase

Datta, Soma; Roy, Arun

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4176

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DC Field	Value	Language
dc.contributor.author	Datta, Soma	-
dc.contributor.author	Roy, Arun	-
dc.date.accessioned	2011-11-04T04:11:25Z	-
dc.date.available	2011-11-04T04:11:25Z	-
dc.date.issued	2011-09	-
dc.identifier.citation	Liquid Crystals, 2011, Vol.38, p1193	en
dc.identifier.issn	0267-8292	-
dc.identifier.issn	1366-5855 (online)	-
dc.identifier.uri	http://hdl.handle.net/2289/4176	-
dc.description	Restricted Access.	en
dc.description.abstract	The critical behaviour of the electroclinic response in the chiral smectic A∗ phase in the vicinity of the second-order smectic A∗ to smectic C∗ phase-transition temperature has been investigated using a new electro-optic technique. The temperature variation of the electroclinic coefficient, the relaxation frequency and the coefficient of the quartic term in the tilt angle in the Landau free energy expansion have been studied. The electroclinic coefficient diverges with decreasing temperature as the smectic A∗ to smectic C∗ phase-transition temperature is approached with a critical exponent, as predicted in the mean field Landau theory. The measured quartic coefficient varies strongly with temperature, contrary to the usual assumptions of the mean field Landau theory.	en
dc.language.iso	en	en
dc.publisher	Taylor & Francis	en
dc.relation.uri	http://dx.doi.org/10.1080/02678292.2011.602123	en
dc.rights	2011 Taylor & Francis	en
dc.subject	Liquid crystals	en
dc.subject	Phase transitions	en
dc.title	A simple electro-optic technique for studying the electroclinic effect in the smectic A∗ phase	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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