New Scenarios in the Electroconvection of a Homeotropic Nematic Liquid Crystal
作者:
Nándor Éber,
Axel Rossberg,
Ágnes Buka,
Lorenz Kramer,
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: 161-168
ISSN:1058-725X
年代: 2000
DOI:10.1080/10587250008023265
出版商: Taylor & Francis Group
关键词: nematic liquid crystal;electroconvection
数据来源: Taylor
摘要:
Unusual electroconvection scenarios have been found in a homeotropic nematic liquid crystal subjected to a small magnetic field: two Lifshitz frequencies, oscillations between pattern free state and chaos, and CRAZY rolls. The variation of the azimuthal angle of the director has been measured around the normal roll—abnormal roll transition at various frequencies. Experimental results agree well with theoretical expectations. A model is proposed to describe the structure of CRAZY rolls.
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