RELATIVISTIC CALCULATION OF CCV AND CVV AUGER-ELECTRON SPECTRA - APPLICATIONS TO TI0.5AL0.5N AND PD

By keeping the interaction "classical," the nonrelativistic theory of CCV and CVV Auger-electron spectra (AES) is extended to a relativistic description, i.e., to a formulation in which the four participating states are described fully relativistically. It is shown that in the nonrelativistic limit the present approach yields exactly the previous nonrelativistic formulation. This is illustrated explicitly for the case of the Ti spectra of Ti0.5Al0.5N for which nonrelativistic AES calculations were published recently. As a further example the M4,5VV AES is shown for pure metallic Pd and compared to existing experimental data as well as to a calculation using the intermediate-coupling scheme.