Publication Title

Physical Review E

Publication Date

2-2000

Document Type

Article

DOI

10.1103/PhysRevE.61.1574

Keywords

liquid crystals, phases

Disciplines

Physics

Abstract

The most frequently observed focal conic domains (FCD’s) in lamellar phases are those based on confocal paris of ellipse and hyperbola. Experimentally, the eccentricity of the ellipse takes a broad range of values 0<~eeisolated FCD reaches a minimum only at e⃗1 (under the constraint of a fixed major semiaxis of the ellipse); exceptions include situations with large saddle-splay elastic constant and small domains where the applicability of the elastic theory is limited. In realistic cases, a value of eccentricity smaller than 1 is stabilized by factors other than the curvature energy: by dislocations emerging from the FCD’s with e0, compression of layers and surface anchoring.

Comments

Copyright 2000 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.61.1574.


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