Rotational deformation instability in nematic due to layer surface curvature
نویسندگان
چکیده
منابع مشابه
Curvature oscillations and linear electro-optical effect in a surface layer of a nematic liquid crystal
Damped curvature oscillations are excited at the surface between a nematic liquid crystal and a solid substrate, from the linear coupling of an AC electric field with the flexoelectric properties of the medium. The waves are detected by a modulation ellipsometry technique. Linear-in-field oscillations of the director in the surface nematic layer have been observed. The amplitude and characteris...
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A continuous transition from tilted to homeotropic alignment at an interface is observed at a temperature T(a) for a nematic liquid crystal on cooling toward the nematic-smectic-A phase transition temperature. T(a) is found to depend on the treatment of the substrate. The behavior is examined theoretically in terms of a pair of competing easy axes (homeotropic and planar) and the tilt elasticit...
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ژورنال
عنوان ژورنال: Journal of Physical Studies
سال: 2008
ISSN: 1027-4642,2310-0052
DOI: 10.30970/jps.12.4601