NICKEL AND COBALT ELECTRON DISTRIBUTION IN AMORPHOUS METALLIC Ni-P AND Co-PReport as inadecuate




NICKEL AND COBALT ELECTRON DISTRIBUTION IN AMORPHOUS METALLIC Ni-P AND Co-P - Download this document for free, or read online. Document in PDF available to download.



Abstract : 2p 3-2-3d emission and absorption spectra of nickel and cobalt in amorphous metallic Ni-P and Co-P have been studied. No modification of the emission spectrum with respect to the pure crystallised metal is observed. As a consequence, it may be deduced that the 3d filled distribution of both materials is similar. But, differencies appear in the absorption spectrum ; by comparison with an APW calculation of density of states, we can identify the part of the Ni distribution which is involved in this modification. By combinating X-ray and ESCA measurements, we may conclude that there is no shift observed in the position of the Fermi level, when the nickel is amorphised by the presence of about 15 % phosphorus atoms. From our experiments, similar results seem to be observed for the amorphous metallic Co-P.





Author: E. Belin D. Fargues C. Bonnelle J. Flechon F. Machizaud J. Rivory

Source: https://hal.archives-ouvertes.fr/



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