Structural Defects and Phase Transition in a Lyotropic System: Optical Birefringence and Order Parameter Measurements

@inproceedings{Allain1988StructuralDA,
  title={Structural Defects and Phase Transition in a Lyotropic System: Optical Birefringence and Order Parameter Measurements},
  author={Manuel Allain and Patrick Oswald and J.-M. di Meglio},
  year={1988}
}
Abstract We show that the birefringence of the lamellar phase of the C12E6-H2O system decreases abruptly as the temperature increases towards the lamellar-isotropic transition. As the order parameter does not show such behaviour, but decreases regularly, we attribute this phenomenon to disorienting defects whose concentration increases with temperature and diverges when approaching the phase transition, as observed previously by electron microscopy. 

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