Abstract
Recent spin-resolved x-ray photoelectron spectroscopy studies of Ni core-level and valence-band features are reviewed. Exchange splitting was observed in the main lines of 3s and 2s spectra. These results suggest that the final state Ni 3d electron configuration upon core-hole creation is not purely c3d10 (c=core hole) but rather a mixture of ∼50% c3d9 and ∼50% c3d10. We propose a revised view of core hole screening in Ni in which both unoccupied 3d and unoccupied, unpolarized, and hybridized 3d–4sp states are involved.
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Schedule a callMore From: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
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