TY - JOUR
T1 - Universality of ionic criticality
T2 - Size- and charge-asymmetric electrolytes
AU - Kim, Young C.
AU - Fisher, Michael E.
AU - Panagiotopoulos, Athanassios Z.
PY - 2005/11/4
Y1 - 2005/11/4
N2 - Grand-canonical simulations designed to resolve critical universality classes are reported for z1 hard-core electrolyte models with diameter ratios λ=a+/a-6. For z=1 Ising-type behavior prevails. Unbiased estimates of Tc(λ) are within 1% of previous (biased) estimates but the critical densities are ∼5% lower. Ising character is also established for the 21 and 31 equisized models, along with critical amplitudes and improved Tc estimates. For z=3, however, strong finite-size effects reduce the confidence level although classical and O(n3) criticality are excluded.
AB - Grand-canonical simulations designed to resolve critical universality classes are reported for z1 hard-core electrolyte models with diameter ratios λ=a+/a-6. For z=1 Ising-type behavior prevails. Unbiased estimates of Tc(λ) are within 1% of previous (biased) estimates but the critical densities are ∼5% lower. Ising character is also established for the 21 and 31 equisized models, along with critical amplitudes and improved Tc estimates. For z=3, however, strong finite-size effects reduce the confidence level although classical and O(n3) criticality are excluded.
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U2 - 10.1103/PhysRevLett.95.195703
DO - 10.1103/PhysRevLett.95.195703
M3 - Article
C2 - 16383996
AN - SCOPUS:28844478020
SN - 0031-9007
VL - 95
JO - Physical review letters
JF - Physical review letters
IS - 19
M1 - 195703
ER -