Journal of Physics A Mathematical and General
Possible interpretation of the Sykes-Gaunt exponent for the mean cluster size near Tc
Dietrich Stauffer
Abstract
Sykes and Gaunt (see ibid., vol.9, p.2131 (1976)) showed the mean cluster size in the two-dimensional Ising model to diverge as (T c -T) - theta with theta approximately=1.91 larger than the Ising susceptibility exponent gamma =1.75. This difference theta - gamma is explained here at least partly by Binder's cluster model (see Ann. Phys. NY. vol.98, p.390 (1976)) for critical points where theta >or= gamma + beta =1.875.