Screened Coulomb interaction calculations: cRPA implementation and   applications to dynamical screening and self-consistency in uranium dioxide   and cerium
  We report an implementation of the constrained random phase approximation (cRPA) method within the projector augmented-wave framework. It allows for the calculation of the screened interaction in the same Wannier orbitals as our recent DFT+U and DFT+DMFT implementations. We present calculations of the dynamical Coulomb screened interaction in uranium dioxide and alpha and gamma cerium on Wannier functions. We show that a self-consistent calculation of the static screened interaction in DFT+U together with a consistent Wannier basis is mandatory for gamma cerium and uranium dioxide. We emphasize that a static approximation for the screened interaction in alpha cerium is too drastic. 
Bernard Amadon, Thomas Applencourt, and Fabien Bruneval
cond-mat.str-el cond-mat.mtrl-sci