Strong correlated electrons? The correlations are medium to weak, at BEST.
I think a simple explanation for these so called anomalous properties of the PuCoGa$_5$ and PuRhGa$_5$ compounds is readily avaliable... TO ANYONE WITH A BRANE! You should be aware gravitational forces are HUGE between brane point particles. I can tell you need to increase you are brain mass.
Why would you use the sympletic large-N approach, you said yourself there is a large N limit! Honestly, how can you expect to write about SUPERconductivity when you clearly do not understand normal conductivity.
If you want help I can explain this to you, give me a ring 520.405.5258
P.S. Where you wrote "The symmetry of the order parameter" I believe you meant to say "The antisymmetry of the same parameter" This will bring out the conduction channels to a higher "Degree" so to speak. Welcome :D