Two different site order parameters are considered to characterize the partial spin-glass behavior of ±J square Ising lattices. On the one hand, q proposed by Edwards and Anderson two decades ago; on the other p, a more drastic parameter introduced recently. Site order parameters depend very...

Ising lattices with ±J exchange interactions (bonds) present frustration. We consider computer simulations on square lattices where half the bonds are ferromagnetic and the other half are antiferromagnetic. Lattices 4×4 through 10×10 are numerically calculated finding ground state properties...

We modify the usual isotropic ±J Ising spin glass model introducing stronger interactions by a factor of f (anisotropy factor) along one of the axis. We begin by considering the situation in which concentration of ferromagnetic (F) and antiferromagnetic (AF) interactions are the same, where we...