title: Zero- and low-temperature behavior of the two-dimensional ±J Ising spin glass.
abstract: Scaling arguments and precise simulations are used to study the square lattice ±J Ising spin glass, a prototypical model for glassy systems. Droplet theory explains, and our numerical results show, entropically stabilized long-range spin-glass order at zero temperature, which resembles the energetic stabilization of long-range order in higher-dimensional models at finite temperature. At low temperature, a temperature-dependent crossover length scale is used to predict the power-law dependence on temperature of the heat capacity and clarify the importance of disorder distributions.
authors.affiliation: Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA.
authors.forename: Creighton K
authors.initials: CK
authors.lastname: Thomas
authors.forename: David A
authors.initials: DA
authors.lastname: Huse
authors.forename: A Alan
authors.initials: AA
authors.lastname: Middleton