Abstract
We consider a discrete phenomenological model description of tilted smectic phases, in which the simple Landau free energy expression includes only the usual van der Waals interaction, nearest-neighbour interaction (J 1), next nearest-neighbour interaction (J 2) and the chiral term (Y ). We study the effect of the chirality on the angles between the adjacent layers by minimizing the free energy and assuming the constant amplitude approximation. The effects of the chirality are investigated for three different situations: J 1>J 2, J 1<J 2 and J 1 = J 2. The results obtained are illustrated and discussed.
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