A fundamental study on spin-resolved L3M23M23 and L3M1M45 Auger spectra of 3d transition metal systems

Various effects which cause the spin polarization in L3M23M23 and L3M1M45 Auger spectra of 3d transition metal systems are systematically studied by means of an atomic-model calculation including the full-multiplet coupling effect. We consider the following effects: (i) incident-photon polarization, (ii) 3d-core interactions in the intermediate and final states, (iii) resonance effect and (iv) configuration interaction between the L3M23M23 and L3M1M45 Auger final states. The model calculations are also compared with experimental data for ferromagnetic Fe metal films and it is shown that the agreement is fair. We also investigate theoretically the antiferromagnetically ordered system and show that the spin polarization is possible even for the antiferromagnetic case if the circularly polarized light is used