The Heavy Fermion Coherence Scale   
                                     
Zachary Fisk, UC Irvine    

Abstract: The characteristic of heavy Fermion systems is a                      
temperature scale T* below which the higher temperature local moment            
behavior evolves into a coherent Pauli paramagnetic electronic ground           
state. We show empirically that this temperature scale is determined            
by the RKKY intersite coupling deriving from the Kondo coupling of             
the corresponding dilute magnetic system.