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Proceedings Paper

Anchoring energy effects: configuration and phase transitions in a nematic liquid crystal confined to a small cylindrical cavity
Author(s): Alexei D. Kiselev; Victor Yu. Reshetnyak
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Paper Abstract

In this paper we study the anchoring energy effects in the nematic liquid crystal confined to a submicron cylindrical cavity. Under the perpendicular anchoring conditions and (2K24 + WR)/K11 > 2 it is shown that uniform axial director configuration becomes unstable. In this case the configuration transition occurs. We have obtained the transition threshold dependence on the uniform electric field applied along the cylindrical axis. The stability of the axial director alignment as a function of cavity radius is considered. Taking into account contributions from both the elastic energy and the surface anchoring energy we discuss some results of Landau- de Gennes theory for the uniformly distributed order parameter. Two cases are explored: W is proportional to S and to S2 respectively. It is found the shift of phase transition temperature, the width of instability region. The residual orders are different in these cases.

Paper Details

Date Published: 27 October 1992
PDF: 12 pages
Proc. SPIE 1815, Display Technologies, (27 October 1992); doi: 10.1117/12.131317
Show Author Affiliations
Alexei D. Kiselev, Chernigov Technological Institute (Ukraine)
Victor Yu. Reshetnyak, Institute of Surface Chemistry (Ukraine)

Published in SPIE Proceedings Vol. 1815:
Display Technologies
Shu-Hsia Chen; Shin-Tson Wu, Editor(s)

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