X-ray scattering is used to probe the smectic order in octylcyanobiphenyl partially confined between a free surface and a microgrooved glass substrate. It is found that the smectic order develops 6 K above the bulk nematic to smectic-A transition with layer spacing compressed up to 3% under a lateral confinement within the grooves. This lateral confinement is released as the thickness of the film above the grooves increases.
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Shi, Yushan; Martínez-Miranda, L. J.; Kumar, Satyendra (1997). X-Ray Scattering Study of a Smectic-A Liquid Crystal Partially Confined Between Free Surface and Microgrooved Substrates. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 301(1) 73-78. doi: 10.1080/10587259708041750. Retrieved from https://oaks.kent.edu/article/x-ray-scattering-study-smectic-liquid-crystal-partially-confined-between-free-surface-and