Actinide Topological Insulator Materials with Strong Interaction
  Topological band insulators have recently been discovered in spin-orbit coupled two and three dimensional systems. In this work, we theoretically predict a class of topological Mott insulators where interaction effects play a dominant role. In actinide elements, simple rocksalt compounds formed by Pu and Am lie on the boundary of metal to insulator transition. We show that interaction drives a quantum phase transition to a topological Mott insulator phase with a single Dirac cone on the surface. 
Xiao Zhang and Haijun Zhang and Claudia Felser and Shou-Cheng Zhang
cond-mat.str-el cond-mat.mtrl-sci