Dislocation Geometry in the TGB-A Phase: Linear Theory
软凝聚态物质
2009-11-07 v1 超导电性
摘要
We demonstrate that an arbitrary system of screw dislocations in a smectic-A liquid crystal may be consistently treated within harmonic elasticity theory, provided that the angles between dislocations are sufficiently small. Using this theory, we calculate the ground state configuration of the TGB-A phase. We obtain an estimate of the twist-grain-boundary spacing and screw dislocation spacing in a boundary in terms of the macroscopic parameters, in reasonable agreement with experimental results.
引用
@article{arxiv.cond-mat/0101270,
title = {Dislocation Geometry in the TGB-A Phase: Linear Theory},
author = {Igor Bluestein and Randall D. Kamien and T. C. Lubensky},
journal= {arXiv preprint arXiv:cond-mat/0101270},
year = {2009}
}
备注
11 pages, 5 included figures, RevTeX