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1 results

  • 10 - Lattice Models

  • Claudio Zannoni
  • Book:
    Liquid Crystals and their Computer Simulations
    Published online:
    21 July 2022
    Print publication:
    28 July 2022, pp 401-433

  • Summary

    This chapter reviews the computer simulation of simple lattice models for uniaxial and biaxial nematic systems. Beyond being interesting in their own right for understanding the orientational properties of LCs, these models, e.g. the Lebwohl–Lasher one, are computationally unexpensive in relative terms, and provide a useful test bed for developing techniques for studying LCs that can then be employed also for off-lattice and atomistic models. Here the investigation of the orientational phase transition, assessing its type, as well as the identification of topological defects and the calculation of DNMR spectra in bulk and confined nematics (droplets, films) are discussed.