Orbital Dependent Electronic Masses in Ce Heavy Fermion Materials studied via Gutzwiller Density Functional Theory

Abstract

A series of Cerium based heavy fermion materials is studied using a combination of local density functional theory and many-body Gutzwiller approximation. Computed orbial dependent electronic mass enhancements parameters are compared with available data extracted from measured values of the Sommerfeld coefficient. The Gutzwiller density functional theory is shown to remarkably follow the trends across a variety of Ce compounds, and to give important insights on orbital selective mass renormalizations that allows a better understanding of wide spread of data.