Fermi surface and many-body enhancement in Pd

A Korringa-Kohn-Rostoker phase-shift parametrization of the Fermi-surface geometry and Fermi velocities in Pd is presented based on new measurements of cyclotron orbital areas and effective masses using the de Haas-van Alphen effect in fields up to 13.2 T and temperatures down to 0.35 K. We report accurate symmetry direction areas on all four sheets of the surface and new mass and area measurements on the open-hole sheet and $L$ pockets. Comparison is made to band-theory radii and velocities, and enhancement effects due to electron-phonon, electron-electron, and electron-paramagnon interactions are discussed.