Figure 3: DCA spin susceptibility and RPA fit.
The AF spin susceptibility χDCA(Q=(π, π), ωm=0) from the DCA calculation (circles) and the RPA fit (equation (8)) with 
=6.7 (squares). The AF response continues to increase as T decreases below T*, leading to an increase of the spin–fluctuation interaction so that even though the BCS logarithmic increase of P0(T) is suppressed, the d-wave eigenvalue λd(T) increases as seen in Fig. 1b. The solid lines are guides to the eye.
