The Two Dimensional XY Spin Glass with Ferromagnetic   Next-Nearest-Neighbour Interactions
  The random-bond XY spin glass with ferromagnetic next-nearest-neighbour interactions is studied on a square lattice by Monte Carlo simulations. We find strong evidence for a finite-temperature spin glass transition at $T_c\approx 1.1$. We also give estimates for the spin glass critical exponents for different values of the strength of the nearest-neighbour interaction. Our results are consistent with universal behaviour. 
S.Jain and K.J.Hammarling