Smectic Order in Double-Twist Cylinders
arXiv:cond-mat/9611021 · doi:10.1051/jp2:1997156
Abstract
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.
12 pages, plain TeX (macros included), 5 postscript figures (included). Revised version has some more text and a new figure. To appear in J. Phys. II France (1997)