The interactions between charged colloidal particles with sufficient strength to cause crystallization are shown to be describable in terms of the usual Debye–Huckel approximation, but with a renormalized charge. The effective charge in general is smaller than the actual charge. We calculate the relationship between the actual charge and the renormalized charge by solving the Boltzmann–Poisson equation numerically in a spherical Wigner–Seitz cell. We then relate the numerical solutions and the effective charge to the osmotic pressure and the bulk modulus of the crystal. Our calculations also reveal that the renormalization of the added electrolyte concentration is negligible, so that the effective charge computations are useful even in the presence of salts.
Reçu le 22 avril 1982, accepte le 7 juillet 1982)Résumé. 2014 Nous calculons la densité d'états sur un fractal en tenant compte des propriétés d'échelles pour le volume et la connectivité. Nous utilisons la méthode de Green développée par ailleurs, qui utilise une relation au problème de diffusion. Nous avons trouvé que, pour compter les modes correctement, on doit avoir un espace réciproque avec une nouvelle dimensionnalité de fracton
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.