Skip to content

MLC

Seminar

Liquid crystal defects, a critical overview

Kleman, M (Institut de Physique du Globe de Paris)
Monday 24 June 2013, 09:45-10:30

Seminar Room 1, Newton Institute

Abstract

Defects in liquid crystals present an extremely vast set of situations, depending on the nature of the order parameter, elasticity properties, boundary conditions. One distinguishes : defects characteristic of liquid crystalline media with one or two discrete repeat distances (smectic and columnar phases) which can be investigated by pure geometric methods ; defects characteristic of a director order parameter, which employ the Volterra process (for one dimensional defects) and topological methods, those latter providing scope for defects of various dimensionalities ; finally continuous defects whose consideration is essential for a description of defect physical properties. These topics will be confronted with an historical point of view and possible future developments.

Back to top ∧