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    • Landau Theory of the Reentrant Nematic-Smectic A Phase Transition 

      Pershan, Peter S.; Prost, J. (EDP Sciences, 1979)
      The reentrant, nematic to smectic A phase transition is shown to follow from the Landau theory if one assumes the existence of an optimum density for smectic ordering. The shape of the coexistence line in the P-T plane is ...