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Dielectric Friction in Restricted Geometries

Published online by Cambridge University Press:  25 February 2011

M. Urbakh  and
J. Klafter
M. Urbakh
Affiliation:
School of Chemistry, Tel-Aviv University, 69978, Ramat-Aviv, Tel-Aviv, Israel
J. Klafter
Affiliation:
School of Chemistry, Tel-Aviv University, 69978, Ramat-Aviv, Tel-Aviv, Israel
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Abstract

The influence of a solid-liquid interface on the relaxation of a point dipole embedded in the liquid side is discussed. The dielectric friction of a dipole as a function of its distance from a boundary is calculated. The calculations are carried out assuming a nonlocal dielectric function of the liquid, characterized by a typical correlation length which may depend on temperature. The corrections to the relaxation of a dipole due to the presence of a boundary are shown to be small. Larger corrections can be introduced by postulating structural changes in the nature of the liquid near the boundary.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 248: Symposium O – Complex Fluids , 1991 , 513
Copyright
Copyright © Materials Research Society 1992

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