NDLI: Electric-field-induced chiral separation in liquid crystals.

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Electric-field-induced chiral separation in liquid crystals.

Content Provider	Semantic Scholar
Author	Heppke, Gerd Prof Dr Jákli, Antal I. Rauch, Sebastian Sawade, Hans
Copyright Year	1999
Abstract	Recently it was shown that smectic liquid crystal phases formed by achiral banana-shaped molecules are chiral. Films of such phases generally contain both homochiral (consisting of layers of the same chirality) and racemic (the chirality alternates in subsequent layers) domains. So far it has not been clear how to control the overall chirality of the sample. By observing the effects of the application of suitable electric fields, it was noted that chirality of a film of banana shaped molecules was interchanged between homochiral and racemic. We present dielectric, electro-optic, and polarization current measurements on both the racemic and chiral states. The observations indicate that the synclinic states have minimum free energies. The observed dielectric modes can be explained by a simple model assuming that the antiferroelectric state is very weak.
File Format	PDF HTM / HTML
DOI	10.1103/PhysRevE.60.5575
Alternate Webpage(s)	http://digitalcommons.kent.edu/cgi/viewcontent.cgi?article=1052&context=cpippubs
Alternate Webpage(s)	https://digitalcommons.kent.edu/cgi/viewcontent.cgi?article=1052&context=cpippubs&httpsredir=1&referer=
PubMed reference number	11970433
Alternate Webpage(s)	https://doi.org/10.1103/PhysRevE.60.5575
Journal	Medline
Volume Number	60
Issue Number	5
Part	A
Journal	Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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