Selection of defect structures in twist-grain-boundary-A phase of chiral liquid crystals

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dc.creatorOgawa, Hiroto
dc.date2009-03-23
dc.date.accessioned2026-07-07T12:55:38Z
dc.date.available2026-07-07T12:55:38Z
dc.descriptionWe study the structure of the twist grain boundary in chiral smectic liquid crystals using the Landau-de Gennes model. By considering spatial variation of the smectic order, we distinguish the Melted-Grain-Boundary-A (MGBA) structure with cholesteric-like domains and the Twist-Grain-Boundary-A (TGBA) structure consisting of screw dislocations. The MGBA structure becomes stable near the transition to the cholesteric phase. On approaching the transition, the cholesteric-like domain grows outside the grain boundary. Also, the dislocation spacings of the TGBA structure agree better with experimental results than previous theories.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0903.3789
dc.identifierhttp://arxiv.org/abs/0903.3789
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224314
dc.subjectSoft Condensed Matter
dc.titleSelection of defect structures in twist-grain-boundary-A phase of chiral liquid crystals
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