Phosphorus density of states in amorphous Ni-P

K beta emission and K absorption spectra of phosphorus in amorphous metallic Ni-P are presented and discussed. Modifications to the electronic distribution of p partial states of phosphorus between the pure element and alloy are deduced. An increase of the pure p states is evidenced. This modification involves a partial localisation of P p states in Ni-P. In contrast, among the strongly mixed s-p states lying in the upper part of the valence band, the proportion of s-character states increases.