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Order parameter dependence of the viscosity coefficients of a biaxial nematic liquid crystal

Osipov, Mikhail and Sonnet, Andre (2011) Order parameter dependence of the viscosity coefficients of a biaxial nematic liquid crystal. European Physical Journal E, 34 (10). p. 109.

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Abstract

We derive expressions for the order parameter dependence of the viscosity coefficients of a biaxial nematic liquid crystal by comparing its dissipation function expressed in terms of directors with that expressed in terms of order tensors. The results enable us to identify the dominant flow viscosity coefficients and to compare their temperature variation according to their dependence on the dominant scalar order parameters. By considering different orientations of an external field, we identify three characteristic switching times corresponding to three rotational viscosities, and we estimate the ratio of the switching times of the primary and the secondary directors.

Item type: Article
ID code: 37052
Keywords: liquid crystal , order parameter dependence , viscosity coefficients, Probabilities. Mathematical statistics, Materials Science(all), Chemistry(all), Surfaces and Interfaces, Biotechnology, Biophysics
Subjects: Science > Mathematics > Probabilities. Mathematical statistics
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 25 Jan 2012 11:17
    Last modified: 05 Sep 2014 14:42
    URI: http://strathprints.strath.ac.uk/id/eprint/37052

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