Co/Si(111) interface investigated by bremsstrahlung isochromat spectroscopy and x-ray-induced photoemission spectroscopy

Abstract
Bremsstrahlung isochromat spectroscopy and x-ray-induced photoemission spectroscopy have been applied to probe the density of empty and occupied electronic states at the Co/Si(111) interface. Experimental results are compared to theoretical calculations. The results confirm that at very low coverage (23 Å of Co), Cd and Si atoms interdiffuse to form a CoSi2-like phase at the interface.