Applying f-electron Physics Zachary Fisk Dept of Physics UC Davis, Davis, California

The origin of heavy Fermion superconductivity is a central issue in the correlated electron physics of f-materials. 4f-physics has a simplicity that gets compromised in the physics of 5f and transitional metal compounds, yet there appears a smooth evolution of properties in the progression 4f → 5f → 3d. The “analytic continuation” of the superconductivity of CeCoIn5, for example, to the anomalous 18K Tc of PuGaIn5 suggests that the local moment/Kondo critical boundary will have expression in 3d materials and prompts questions as to where to look for this.