Modification of the Malus Law for the Torsional Deformation of Lyotropic Nematics in Magnetic Field on the Basis of Statistical Approach

摘要

A method based on the statistical approach is proposed to calculate the light intensity for the torsional deformation of lyotropic nematic liquid crystals at violated Mauguin adiabatic approximation. Theo-retical dependences of the light intensity on the magnetic field strength are obtained for two limiting cases of lyotropic nematic anchoring with bearing surfaces: infinite and low anchoring energies.