Experimental Approach for LVV Auger Spectra of Sulfur in Some Sulfate Salts

Abstract

The Auger spectra of sulfur in some sulfate salts have been investigated by ionization loss and low-energy loss spectroscopy. The spectra have a common line shape which is peculiar to sulfur in sulfate ions. They are considered to reflect the molecular orbitals of sulfate ions and can be interpreted in terms of cross-transition. The interpretation is made by comparing the observed Auger energies with the energies calculated from the loss energies in the ionization loss process and the low-energy loss process. The final hole states are not the outer shell levels of sulfur itself but the molecular orbitals which derive from sulfur and oxygen atoms.