Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

Influence of weak anchoring upon the alignment of smectic a liquid crystals with surface pretilt

De Vita, R. and Stewart, I.W. (2008) Influence of weak anchoring upon the alignment of smectic a liquid crystals with surface pretilt. Journal of Physics: Condensed Matter, 20 (33). p. 335101. ISSN 0953-8984

[img] PDF (strathprints19576.pdf)
strathprints19576.pdf
Restricted to Registered users only

Download (501kB) | Request a copy from the Strathclyde author

Abstract

Equilibrium configurations for smectic A liquid crystals in a 'bookshelf' geometry are determined from a nonlinear continuum model under strong and weak anchoring conditions at the boundary for the usual director n. Natural boundary conditions are derived for n and the smectic layer normal a when a preferred director orientation np, which generally induces a director pretilt, is prescribed on the boundaries. Two key aspects are examined via the nonlinear equilibrium equations: the separation of n from a and the influence of weak anchoring. The orientations of n and a relative to np may differ significantly and depend very much upon the magnitude of the anchoring strength. These results from a nonlinear theory are natural and novel developments of previous classical linearized models for which . Comparisons are also drawn between solutions for strong and weak anchoring conditions.