Electronic-Structure Study of the Na-Ga and Ni-In Intermetallic Compounds Using X-ray Photoemission Spectroscopy

摘要

Polycrystalline Sodium Gallium and Ni-In intermetallic compounds of various stoichiometric compositions have been examined by x-ray photoemission spectroscopy. The observed valence-band spectra for all the compounds are very similar to those for elemental Ni; those for Ni3Ga and NiIn agree rather well with the band-structure calculations of Kubo and others (J.Phys., F17, 397 (1987)) and Collinet and others (Z. Metallkd. 77, 798 (1986), respectively. Only a partial filling of the empty Ni 3d states occurs on forming compounds with Gallium Indium. Polycrystalline intermetallic compounds; Valence band spectra, D-band filling, Core level spectra, Satellite intensities, Compound formation. (jes)