title: Evidence for nonuniversal scaling in dimension-four Ising spin glasses.
abstract: The critical behavior of the Binder cumulant for Ising spin glasses in dimension four is studied through simulation measurements. Data for the bimodal interaction model are compared with those for the Laplacian interaction model. Special attention is paid to scaling corrections. The limiting infinite size value at criticality for this dimensionless variable is a parameter characteristic of a universality class. This critical limit is estimated to be equal to 0.523(3) in the bimodal model and to 0.473(3) in the Laplacian model.
authors.affiliation: Department of Mathematics and Mathematical Statistics, Umeå University, SE-901 87, Sweden.
authors.forename: P H
authors.initials: PH
authors.lastname: Lundow
authors.affiliation: Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, Montpellier, France.
authors.forename: I A
authors.initials: IA
authors.lastname: Campbell