Abstract
A phenomenological theory that describes the reorientational phase transitions between inhomogeneous states in lyotropic liquid crystals in an external magnetic field is presented. The specific properties of lyotropic liquid crystals – the biaxial surface layer formation and the rotation of the surface director due to the gliding of the micelles – are taken into account. The equilibrium phases are characterized by the orientation of the “gliding” director in the biaxial surface layer with respect to the bulk director. An optical transmission experiment is proposed to show experimental evidence for the reorientational transitions in lyotropic liquid crystals.
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