Binding energies of Si 2p and Co 3p electrons in cobalt silicides

Abstract

The binding energies of Si 2p and Co 3p core-shell electrons in four stable cobalt silicides (Co3Si, Co2Si, CoSi, and CoSi2) have been determined by high-resolution photoelectron spectroscopy using synchrotron radiation. The silicides were formed by solid-state epitaxy under identical conditions on Si(100), Si(110), and Si(111) faces of silicon single crystals.