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SUMMARY:Exotic defect structures in a strongly confined chiral liquid crys
 tal - Fukuda\, J (AIST)
DTSTART:20130624T110000Z
DTEND:20130624T114500Z
UID:TALK45868@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We present our numerical results on the structures of a chiral
  nematic liquid crystal when it is confined in a thin planar cell with str
 ong anchoring on its surfaces. We are interested in the cases where the li
 quid crystal exhibit a cholesteric blue phase under no confinement\, and t
 he cell thickness is of the order of or smaller than the cholesteric pitch
 . We show various stable exotic defect structures depending on temperature
 \, cell thickness\, and the type of anchoring. They include a hexagonal la
 ttice of Skyrmion excitations\, and a regular array of ring defects. These
  exotic defect structures can be regarded as a result of frustrations betw
 een bulk blue phase ordering and surface anchoring that does not allow it.
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LOCATION:Centre for Mathematical Sciences\, Meeting Room 2
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