ISSN:
1434-6036
Keywords:
PACS. 78.70.Ck X-ray scattering - 61.30.Jf Defects in liquid crystals - 64.70.Md Transitions in liquid crystals
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We report X-ray diffraction experiments performed on an antiferroelectric compound exhibiting a very rich polymorphism ( ). The structural study of the unknown phases only allows us to exclude some phenomenological models. The use of oriented planar samples prepared between solid glass plates generate by cooling from the phase a chevron structure of tilted layers already well characterized for the phase. The extensive analysis of the evolution of the chevron structure through the numerous smectic-smectic phase transitions provides some original information in three distinct areas: fundamental data on the important physical parameters in the chevron structure formation, detection of the smectic-smectic phases transition by small change of the chevron structure, and information on the local molecular order induced by the alignment layer (interaction with a rubbed polymer).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050285
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