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

摘要

A series of Cerium based heavy fermion materials is studied using acombination of local density functional theory and many-body Gutzwillerapproximation. Computed orbial dependent electronic mass enhancementsparameters are compared with available data extracted from measured values ofthe Sommerfeld coefficient. The Gutzwiller density functional theory is shownto remarkably follow the trends across a variety of Ce compounds, and to giveimportant insights on orbital selective mass renormalizations that allows abetter understanding of wide spread of data.