Effects of electron polarization on the auger spectra of lanthanum oxide

The SCF-X scattered-wave method has been used in the quasirelativistic approximation to calculate the energies and relative intensities of the transitions in the M₄, ₅N₄,₅V and N₄,₅VV Auger electron spectra AES of lanthanum in the LaO₆^9–cluster, which is taken as a model for crystalline La₂O₃. A study has been made of the influence of relaxation effects on the AES. The AES intensity distribution is largely determined by the population of the 4f states of La in the initial state of the Auger process. The AES for lanthanum in La₂O₃ are interpreted from the calculations.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 22, No. 2, pp. 207–210, March–April, 1986.