Abstract
Disappearance Potential Spectroscopy (DAPS) measurements are performed on clean nickel and on nickel during oxidation. The effect of electron bombardment of the surface during oxudation is investigated. An enhanced oxidation of a factor 5 by electron bombardment is observed. The influence of the surface temperature on the DAP spectra is investigated. A visible shift of the L III and L II binding energies is observed near the Curie temperature. This is explained by a change of the energy level configuration of the nickel surface.
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