Configuration of a smectic A liquid crystal due to an isolated edge dislocation

Snow, B C and Stewart, I W (2017) Configuration of a smectic A liquid crystal due to an isolated edge dislocation. Journal of Physics: Condensed Matter, 29 (19). 195101. ISSN 0953-8984 (https://doi.org/10.1088/1361-648X/aa6751)

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Abstract

We discuss the static configuration of a smectic A liquid crystal subject to an edge dislocation under the assumption that the director and layer normal fields (n and a, respectively) defining the smectic arrangement are not, in general, equivalent. After constructing the free energy for the smectic, we obtain exact solutions to the equilibrium equations which result from its minimisation at quadratic order in the variables which describe the distortion, and hence a complete description of the smectic configuration across the domain of the sample. We also examine the effect of relaxing the constraint n≡a for different values of the constants which characterise the response of the material to distortions, and compare these results with the 'classical' case considered by previous authors, in which equivalence of n and a is enforced.

  • Item type:Article
    ID code:67909
    Dates:
    Date
    Event
    17 May 2017
    Published
    5 April 2017
    Published Online
    17 March 2017
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science
    Depositing user: Pure Administrator
    Date deposited:17 May 2019 13:56
    Last modified:25 Apr 2024 01:03
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/67909
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