Effect of interaction and temperature on quantum phase transition in anisotropic square-octagon lattice*
Bao Ana),b)†, Zhang Xue-Fengb), Zhang Xiao-Zhonga)
       
Anisotropic parameter–interaction ( λ – U ) phase diagram for different T : (a) T = 0.50, (b) T = 0.25, (c) T = 0.17. (d) Combination of the λ – U phase diagrams for different T .