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Proceedings Paper

Induced Goldstone mode in a highly ordered ferroelectric phase
Author(s): S. Wrobel; A. Fafara; Wolfgang Haase; D. Kilian; H. T. Nguyen; K. Saxena
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Paper Abstract

Dielectric, electrooptic and pyroelectric properties of unknown SmX* phase of (S)-(1-propyl-oxycarbonyl) ethyl 4(dodecyloxythiobenzyloxy) benzoate are studied. Low frequency dielectric studies performed with a 10micrometers EHC cell show that this SmX* phase exhibits an induced Goldstone mode dielectric spectrum. The spectrum is a single Debye-Type process with the relaxation time of the order of 10-5 s. The intensity of the spectrum increases non- linearly with the bias field strength. Studies of pyroelectric coefficient in the vicinity SmA*-SmX* transition show, that the SmX* phase is not a typical ferroelectric or antiferroelectric phase, and that the character of the transition depends on the field strength applied.

Paper Details

Date Published: 1 February 1998
PDF: 4 pages
Proc. SPIE 3318, Liquid Crystals: Physics, Technology, and Applications, (1 February 1998); doi: 10.1117/12.299953
Show Author Affiliations
S. Wrobel, Jagiellonian Univ. (Poland)
A. Fafara, Jagiellonian Univ. (Poland)
Wolfgang Haase, Technische Hochschule Darmstadt (Germany)
D. Kilian, Technische Hochschule Darmstadt (Germany)
H. T. Nguyen, Ctr. de Recherche Paul Pascal/CNRS (France)
K. Saxena, Technische Hochschule Darmstadt (Germany)

Published in SPIE Proceedings Vol. 3318:
Liquid Crystals: Physics, Technology, and Applications
Jolanta Rutkowska; Stanislaw J. Klosowicz; Jerzy Zielinski; Jozef Zmija, Editor(s)

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