SIO2 AND AL2O3 VALENCE BAND DENSITY OF STATES FROM SELF-DECONVOLUTION OF L23VV AUGER SPECTRUM

The self-deconvolution of L23VV Auger spectra of SiO2 and Al2O3 has been carried out. The transition density functions obtained are compared with the local density of states (LDOS) of the valence band near the surface, as given by other techniques (XPS, UPS, XES) and also by theory. A fair agreement in the number and peak positions of valence band is produced. These compounds with MgO constitute an oxide series of increasing ionicity and the effects of initial hole localization in the transition density function are discussed. © 1979.