Possible Stable Structures of Chiral Polar Smectics with Significant Interactions between Next Nearest Layers
作者:
Mojca Čepič,
Barbara Rovšek,
Boštjan Žekš,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 2000)
卷期:
Volume 351,
issue 1
页码: 209-219
ISSN:1058-725X
年代: 2000
DOI:10.1080/10587250008023270
出版商: Taylor & Francis Group
关键词: chiral polar smectics;ferroelectric phase;antiferroelectric phase;nearest layers interactions;next nearest layers interactions
数据来源: Taylor
摘要:
We analyse stable structures in the model where interactions between the nearest and the next nearest layers are taken into acount. Interactions can be noncompeting or competing. We find five different stable structures stable at different values of model parameters. Three of them are already known: the ferroelectric SmC*, the antiferroelectric SmCA* phase and by recent experiments confirmed helicoidal short-pitch SmCα* structure. Aditionally we find two structures, the structure with a primitive cell which extends over 2 smectic layers SmC2* and SmC4* the primitive cell cosists of 4 smectic layers.
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