TY - JOUR
T1 - Criticality of ionic fields
T2 - The Ginzburg criterion for the restricted primitive model
AU - Leote De Carvalho, R. J F
AU - Evans, R.
PY - 1995
Y1 - 1995
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=5644234414&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/7/44/001
DO - 10.1088/0953-8984/7/44/001
M3 - Article (Academic Journal)
AN - SCOPUS:5644234414
VL - 7
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 44
M1 - 001
ER -