Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Evolution from A +2 Defect to +1/2 Defects in a Cylindrical Geometry

Miroshnychenko, Dmitri and Hill, N.A. and Mottram, N.J. and Lydon, J.E. (2005) Evolution from A +2 Defect to +1/2 Defects in a Cylindrical Geometry. Molecular Crystals and Liquid Crystals, 437. pp. 1495-1512. ISSN 15635287

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

In this work the dynamics of liquid crystal ordering in a cylindrical geometry are considered. We study a system with liquid crystalline properties that exhibits translational symmetry along the cylinder axis and, therefore, the problem is effectively two-dimensional. The orientation of liquid crystals is described by a tensorial order parameter and the dynamics are governed by a balance between the dissipation and the rate of change of free energy, which includes the elastic, thermotropic and surface energy terms. The evolution of the + 2 defect differentiating first into two + 1 disclinations and subsequently into four + 1/2 defects is analysed. Different boundary conditions, namely strong and weak or no anchoring, have been considered and the critical value for the anchoring strength, at which + 1/2 defects are very close to escaping through the boundary but still remain there at equilibrium, has been identified.

Item type: Article
ID code: 2242
Notes: The references of this article are secured to subscribers. The DOI requested -- 10.1080/15421400590955334 cannot be found in the Handle System.
Keywords: anchoring, dislocation dynamics, dissipation, free energy, ordering, structures, Physics, Materials Science(all), Chemistry(all), Condensed Matter Physics
Subjects: Science > Physics
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
    Depositing user: Dr Nigel Mottram
    Date Deposited: 06 Dec 2006
    Last modified: 04 Sep 2014 13:08
    URI: http://strathprints.strath.ac.uk/id/eprint/2242

    Actions (login required)

    View Item