Abstract:The relaxation of the alignment tensor specifying the molecular orientation both in the isotropic and in the nematic phases of liquid crystals is analyzed starting from a nonlinear relaxation equation. The presence of an orientating external (electric or magnetic) field is taken into account. The general solution of the equation is presented for the case of an uniaxial alignment. The dynamics of the alignment after an instantaneous switching on or off of a field is treated in some detail. Depending on the valu… Show more
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