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Correlation function; rescaled mean spherical approximation; DLVO

An efficient fast Fourier transform method has been employed to determine correlation function [g(r*)] using the structure factor [S(Q*)] calculated with the rescaled mean spherical approximation (RMSA) and the DLVO potential. Based on this function a parametric (size and charge) study of the ordering in a highly charged and concentrated macroions (an ideal colloid) has been made. The strength of the correlation increases with the increase in the charge on macroions and it saturates after acertain value. Similarly, a critical diameter of the particle depending on the charge on it has been found at which normal feature of the ordering disappears.

R K Pandey¹ D N Tripathi¹

1. Laser and Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi - 221005, India

Published

January 1995

Manuscript received

15 January 1993

Manuscript revised

19 October 1994