Abstract
The isotropic-nematic transition is studied using the Lebwohl-Lasher lattice model of liquid crystal behaviour. The details of the transition are investigated using the Migdal-Kadanoff potential moving version of the real space renormalisation group. The method gives good results when applied to the closely related Heisenberg model of ferromagnetism. A second-order transition is predicted, in disagreement with mean field and some computer simulation results.
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