Model and Experimental Direct Correlation Functions in Dense Charged Fluids

Abstract

The Pearson-Rushbrooke relations are used to calculate partial direct correlation functions c_ij(r) for:

	A neutral mixture of point ions and charged hard spheres, using the mean spherical approximation
	Molten RbCl just above the freezing point, from diffraction data.

Some common features emerge from (a) and (b). The relevance of (b) to extraction of pair potentials is stressed.

Key Words:

• Direct correlation function
• molten salts
• mean spherical approximation