A study of the electronic structure of Fe3C,Fe3Al and Fe3Si by x-ray photoelectron spectroscopy

The core levels and valence bands of Fe₃C, Fe₃Al, Fe₃Si and their pure components at temperatures ranging from 20 to 1000° have been investigated. Shifts in Fe 2p$\text{3}\text{2}$, C 1s, Si 2p and Al 2p confirm the migration of electrons from iron to carbon and from aluminium and silicon to iron. A study of the valence bands of these compounds shows that their electronic structure is determined, in the first approximation, by the type of the second component atoms.