We demonstrate numerically that, for Ising spins on square lattices with ferromagnetic second neighbor interactions and random near neighbor interactions, two-dimensional Ising spin glass order with a nonzero freezing temperature can occur. We compare some of the physical properties of these spin glasses with those of standard spin glasses in higher dimensions.
Physical Review Letters. Woodbury. Vol. 76, n. 24 (June 1996), p. 4616-4619