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Rank dependence of orientational relaxation in dipolar systems

Ravichandran, Sarangan and Bagchi, Biman (1994) Rank dependence of orientational relaxation in dipolar systems. In: Journal of Physical Chemistry, 98 (11). 2729-2731 .

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Official URL: http://pubs.acs.org/doi/abs/10.1021/j100062a004

Abstract

An important yet unsolved problem in the field of orientational relaxation in dipolar liquids is the dependence of the correlation functions C(l)(t), C(l)(t) = [4pi/(2l + 1)SIGMA(m = -l)l [Y(lm)(OMEGA(0)Y(lm)(OMEGA(t))] on the rank l (where Y(lm)(OMEGA) are the usual spherical harmonics). The existing theories on this effect differ in their predictions. To investigate this, we have carried out extensive computer simulations of a Brownian dipolar lattice. The dielectric friction was found to decrease rapidly with increasing l, in qualitative agreement with the predictions of Hubbard-Wolynes. However, the observed effect is much stronger than the predictions of the existing theories.

Item Type: Editorials/Short Communications
Additional Information: Copyright of this article belongs to American chemical society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 11 Apr 2011 06:36
Last Modified: 11 Apr 2011 06:36
URI: http://eprints.iisc.ernet.in/id/eprint/36716

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