Correlation-driven renormalization of Weyl nodes in the Ce-113 series

We study the electronic properties of the inversion-broken CeTX3 (T = Co, Rh, Ir, X=Si,Ge) heavy-fermion materials through a combination of LDA and LDA+Guzwiller methods. In this class of compounds the electronic mass is enhanced, causing narrowing the Ce f-electron bands. Our LDA+Guzwiller procedure captures these renormalization effects, yielding a mass enhancement that is in good agreement with experimental specific heat measurements. We also track the renormalization of Weyl points by the correlations, which move them closer to the Fermi energy. We briefly comment on the interplay of Weyl physics and pressure-induced superconductivity in these compounds.