Finite temperature phase diagram of spin-1/2 bosons in two-dimensional optical latticeL. de Forges de Parny, F. Hébert, V. G. Rousseau and G. G. BatrouniEur. Phys. J. B, 85 5 (2012) 169DOI: https://doi.org/10.1140/epjb/e2012-30055-9