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Related Experiment Videos

Macroscopic dynamics near the isotropic-smectic-A phase transition.

H R Brand1, P K Mukherjee, H Pleiner

  • 1Theoretische Physik III, Universität Bayreuth, D-95440 Bayreuth, Federal Republic of Germany.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|June 21, 2001
PubMed
Summary

This study generalizes hydrodynamic theory for isotropic and smectic-A phases near their phase transition. It presents macroscopic dynamic equations, including electric field effects, for both phases.

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Area of Science:

  • Condensed matter physics
  • Soft matter physics

Background:

  • The isotropic-smectic-A phase transition is a critical phenomenon in liquid crystals.
  • Existing hydrodynamic theories often simplify dynamics near phase transitions.

Purpose of the Study:

  • To generalize hydrodynamic theory for isotropic and smectic-A phases.
  • To describe macroscopic dynamics near the isotropic-smectic-A phase transition.
  • To incorporate the influence of external electric fields.

Main Methods:

  • Generalization of existing hydrodynamic theories.
  • Formulation of macroscopic dynamic equations for both isotropic and smectic-A phases.
  • Inclusion of external electric field effects.

Main Results:

Related Experiment Videos

  • Macroscopic dynamic equations are derived for the isotropic phase near the transition.
  • Macroscopic dynamic equations are derived for the smectic-A phase near the transition.
  • The influence of electric fields on these dynamics is incorporated.

Conclusions:

  • The generalized theory provides a framework for understanding dynamics across the isotropic-smectic-A transition.
  • The derived equations offer testable predictions for experimental verification.
  • Further experiments are proposed to validate the theoretical predictions.