DIRAC-FOCK STUDIES OF SOME ELECTRONIC PROPERTIES OF RARE-EARTH IONS

This paper reports results of accurate fully relativistic Dirac-Fock studies of some electronic properties of rare-earth ions. We present, in addition to eigenvalue information including spin-orbit splittings (useful for interpreting ESCA experiments), 〈rn〉 values (for n = -3, 2, 4, 6) for the 4f electrons and Slater Fk and Gk integrals (of interest for hyperfine interaction and crystal field descriptions), values of the Mössbauer isomer shift electronic densities and the 〈ji〉 integrals useful for interpreting neutron magnetic form factor measurements.