Electronic structure and non-magnetic character of $\delta$-Pu-Am alloys
  The {\em around-mean-field} LSDA+U correlated band theory is applied to investigate the electronic and magnetic structure of $fcc$-Pu-Am alloys. Despite a lattice expansion caused by the Am atoms, neither tendency to 5$f$ localization nor formation of local magnetic moments on Pu atoms in Pu-Am alloys are found. The $5f$-manifolds in the alloys are calculated being very similar to a simple weighted superposition of elemental Pu and Am $5f$-states. 
Alexander Shick (1), Ladislav Havela (2), Jindrich Kolorenc (1),   Vaclav Drchal (1), Thomas Gouder (3), Peter M. Oppeneer (...