title: Birefringence and dielectric relaxation decay transients and anisotropic rotational diffusion of macromolecules in a strong external electric field.
abstract: The decay transient response of polar and polarizable rigid bodies (macromolecules) diluted in a nonpolar solvent after a sudden switch-off of a strong external dc field is evaluated in the context of the anisotropic noninertial rotational diffusion model. On solving the differential-recurrence equations for the statistical moments (expectation values of Wigner's D functions), the decay transients of the birefringence and dielectric relaxation are obtained. The solutions (valid for arbitrary strengths of an external electric field) are given in a closed form suitable for comparison with experiment and Brownian dynamics simulations.
authors.affiliation: Laboratoire de Mathématiques et Physique des Systèmes, Université de Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France. kalmykov@univ-perp.fr
authors.forename: Yuri P
authors.initials: YP
authors.lastname: Kalmykov
mesh_terms: D016880:Anisotropy; D001718:Birefringence; D003198:Computer Simulation; D004058:Diffusion; D004560:Electricity; D004563:Electrochemistry / Q000379:methods*; D046911:Macromolecular Substances; D008962:Models, Theoretical; D012997:Solvents / Q000737:chemistry
chemical_list: D046911:Macromolecular Substances; D012997:Solvents