Abstract
Measurements of L3VV Auger-electron line shapes were made for Ni and Cu at incident electron energies near threshold for L3 subshell ionization to reduce perturbing satellite effects. Large shifts were observed in the position of L3VV features as the incident energy was varied. These shifts are comparable to those found in free atoms due to post-collisional interaction. Apparent inconsistencies in the calculated electronic properties of nickel are removed by a new value of Ueff=2.5 eV, the effective energy of two d electrons on the same atom.