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Title: Wetting-dewetting transition and conformal to non-conformal interfacial roughness transition in ultra-thin liquid crystal films on solid substrates
Authors: Suresh, K.A.
Shi, Yushan
Bhattacharyya, Amitabha.
Satyendra Kumar
Issue Date: 10-Apr-2001
Publisher: World Scientific Publishing Company
Citation: Modern Physics Letters B, 2001, Vol.15, p225-233
Abstract: High-resolution X-ray reflectivity has been employed to study the structure, wetting properties, and interfacial roughness of ultra-thin liquid crystal films. The films were prepared at the air–water interface and transferred on to glass substrates by a modified horizontal deposition technique. A 3-layer film was found to partially-wet the substrate in the nematic and isotropic phases and dewet upon cooling to the crystalline phase. The surface roughnesses at the air-film and the film-glass interfaces exhibited a gradual reversible but hysteretic conformal (strongly correlated) to non-conformal transition between the isotropic and smectic-A phases.
Description: Restricted Access.
ISSN: 0217-9849
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Copyright: 2001 World Scientific Publishing Company
Appears in Collections:Research Papers (SCM)

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