Smectic Order in Double-Twist Cylinders

Details Smectic Order in Double-Twist Cylinders Smectic Order in Double-Twist Cylinders

1996-11-04

arxiv.org/abs/cond-mat/9611021v2

J. Phys. II France 7 (1997) 743

Physics

Condensed Matter

Soft Condensed Matter

12 pages, plain TeX (macros included), 5 postscript figures (included). Revised version has some more text and a new figure. T

Scientific paper

10.1051/jp2:1997156

I propose a double-twist texture with local smectic order, which may have been seen in recent experiments. As in the Renn-Lubensky TGB phase, the smectic order is broken only through a lattice of screw dislocations. A melted lattice of screw dislocations can produce a double-twist texture as can an unmelted lattice. In the latter case I show that geometry only allows for certain angles between smectic regions. I discuss the possibility of connecting these double-twist tubes together to form a smectic blue phase.

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