Criticality of ionic fields: The Ginzburg criterion for the restricted primitive model

R. J F Leote De Carvalho*, R. Evans

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

46 Citations (Scopus)

Abstract

A Ginzburg criterion is employed to estimate the extent of the critical region for the restricted primitive model (RPM) of an ionic fluid. Mean-field critical amplitudes are calculated using the generalized mean-spherical approximation (GMSA) and other recently proposed theories. The resulting (reduced) Ginzburg temperature tG is large and similar to that calculated for models of a one-component neutral fluid. This implies that crossover from mean-field to Ising-like critical exponents should not be expected for the RPM. The relevance of these results for the criticality of real ionic fluids is discussed.

Original languageEnglish
Article number001
JournalJournal of Physics Condensed Matter
Volume7
Issue number44
DOIs
Publication statusPublished - 1995

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