Effect of dipolar interaction in molecular crystals

@article{Hoang2011EffectOD,
  title={Effect of dipolar interaction in molecular crystals},
  author={Danh-Tai Hoang and Hung T. Diep},
  journal={Journal of Physics: Condensed Matter},
  year={2011},
  volume={24}
}
In this paper we investigate the ground state and the nature of the transition from an orientational ordered phase at low temperature to the disordered state at high temperature in a molecular crystal. Our model is a Potts model which takes into account the exchange interaction J between nearest-neighbor molecules and a dipolar interaction between molecular axes in three dimensions. The dipolar interaction is characterized by two parameters: its amplitude D and the cutoff distance rc. If the… 
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