Instabilities under mechanical tension in a smectic cylinder
- 1 January 1976
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 37 (11) , 1359-1361
- https://doi.org/10.1051/jphys:0197600370110135900
Abstract
We discuss theoretically the analog of the Helfrich-Hurault instability for a smectic cylinder (as opposed to the usual case of a flat slab). The smectic layers are initially in a ideal concentric cylinder conformation. It is then assumed that (using for instance a temperature pulse of adequate sign) the layers are put under tension. Then an undulation instability can set in, at a certain optimal wave vector q* parallel to the cylinder axis. We discuss the distortion field at threshold : it is significantly more complex than in the slab problem. The wave vector q* might be revealed in the beaded textures observed by Cladis and White in smectic cylinders of CBOOAKeywords
This publication has 1 reference indexed in Scilit:
- Study of the nematic and smectic A phases of N-p-cyanobenzylidene-p-n-octyloxyaniline in tubesPhilosophical Magazine, 1974