Using the combined density functional and dynamical mean-field theory, we study relativistic corrections to the Fermi surface of palladium. We find, indeed, that relativistic corrections create small hole pockets at the $L$-symmetry points. Furthermore, we show that the computed two-dimensional angular correlation of electron positron annihilation radiation (2D-ACAR) clearly demonstrates the existence of these $L$-hole pockets, which remains robust against electronic correlations. A 2D-ACAR experiment should therefore provide the smoking-gun proof of the existence of $L$-hole pockets in the palladium Fermi surface.

• Received 22 August 2021
• Revised 5 October 2021
• Accepted 25 October 2021

DOI:https://doi.org/10.1103/PhysRevB.104.205102