ELECTRONIC CORRELATIONS IN NI 2P AND 3P MAGNETIC-X-RAY DICHROISM AND X-RAY PHOTOEMISSION OF FERROMAGNETIC NICKEL

The magnetic x-ray dichroism (MXD) in x-ray absorption together with the photoemission of the Ni 2p and 3p levels in ferromagnetic nickel have been analysed using an Anderson impurity model taking into account multiplet splitting. Good agreement with experimental results was obtained for a ground state of 18% d8, 49% d9 and 33% d10 character. In the Ni 2p MXD the branching ratio and total intensity are determined by the spin-orbit interaction and orbital momentum of the ground state, and the satellite structure results from transitions to a pd9 final state.