Surface segregation and preferential sputtering in CoNi alloys: Computer simulation of Auger spectra

Abstract The phenomena of surface segregation and preferential sputtering have been investigated in the CoNi alloy system where previous results have been contradictory. Six alloys covering the whole solid solution range were annealed at 853 K and quenched to give equilibrium segregated surfaces. Computer simulation methods were employed to analyze spectra in both energy windows significant to the system and results are reported with …