Numerical simulation of the twist-grain-boundary phase of chiral liquid crystals

Details Numerical simulation of the twist-grain-boundary phase of chiral liquid crystals Numerical simulation of the twist-grain-boundary phase of chiral liquid crystals

2006-05-10

arxiv.org/abs/cond-mat/0605265v3

Phys. Rev. E, 73, 060701(R) (2006)

Physics

Condensed Matter

Soft Condensed Matter

4 pages and 6 figures

Scientific paper

10.1103/PhysRevE.73.060701

We study the core structure of the twist-grain-boundary (TGB) phase of chiral liquid crystals by numerically minimizing the Landau-de Gennes free energy. We analyze the morphology of layers at the grain boundary, to better understand the mechanism of frustration between the smectic layer order and chirality. As the chirality increases, the effective bending rigidity of layers is reduced due to unlocking of the layer orientation and the director. This results in large deviation of the layer morphology from that of Scherk's first minimal surface and linear stack of screw dislocations (LSD).

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