AUGER-PHOTOELECTRON COINCIDENCE STUDIES OF THE ORIGIN OF THE 3-HOLE FINAL-STATE CONTRIBUTION TO THE NI L(3)VV AUGER LINE

Auger photoelectron coincidence spectroscopy has been used to study th e decay of Ni 2P(1/2) and 2P(3/2) holes to three-valence band holes in the final state of the Ni L(2,3)VV Auger process. This was achieved b y fixing one analyzer at the position of the 3-hole contribution to th e Ni L(3)VV line of an Ni80%Fe20% alloy and scanning the other analyze r over the Ni 2p(3/2) and 2p(1/2) photoelectron lines. With this singl e experiment, we have been able to confirm that the 3-hole final state satellite has contributions from both the L(2)L(3)V Coster-Kronig and L(3)V shake-up/shake-off processes. We present an estimate of the rel ative contribution of each process.