Nonlinear response of permanent dipoles in a mean-field potential to alternating fields

It is shown how the existing theory of the dynamic Kerr effect and nonlinear dielectric relaxation based on the non-inertial Brownian rotation of non-interacting rigid dipolar particles may be generalized to take into account interparticle interactions using the Maier–Saupe mean-field potential. The...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2006-11, Vol.352 (42-49), p.4710-4717
Main Authors: Coffey, W.T., Crothers, D.S.F., Kalmykov, Yu.P.
Format: Article
Language:English
Subjects:
Brownian motion
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric loss and relaxation
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Dynamic Kerr effect
Exact sciences and technology
Fluctuation phenomena, random processes, noise, and brownian motion
Kramers escape rate
Magnetooptical effects
Nonlinear dielectric relaxation
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Physics
Statistical physics, thermodynamics, and nonlinear dynamical systems
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Summary:It is shown how the existing theory of the dynamic Kerr effect and nonlinear dielectric relaxation based on the non-inertial Brownian rotation of non-interacting rigid dipolar particles may be generalized to take into account interparticle interactions using the Maier–Saupe mean-field potential. The results suggest that the frequency dependent nonlinear response provides a new method of measuring the Kramers escape rate (or the longest relaxation time).
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2006.02.131