Abstract
Measurements have been made of total yield and kinetic energy distribution of Auger electrons ejected from a germanium surface by singly charged noble gas ions. By this means, surface changes have been monitored during procedures designed to clean the surface. Ion bombardment yielded a reproducible surface which showed the Auger characteristics to be expected for the clean surface. Heating at lower temperatures for days and for a total of about 3 hr at 1170°K (40° below the melting point) prior to any sputtering only partially cleaned the surface. From the kinetic energy distribution of the Auger electrons some of the principal characteristics of the state density function in the valence band of germanium have been determined.
Published Version
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