Electronic orbitals of Se bonded to Ni(100)

Abstract
New angle‐integrated UPS spectra are presented at different angles of light incidence for NeI radiation on Ni(100) c (2×2)Se. These spectra show that a Se‐derived orbital lies in the energy range of the Nid band as suggested by Fisher. The corresponding INS spectrum is also given and discussed. It is shown that the present Ni sample produces a two‐domain c (2×5)Se structure at one‐quarter monolayer as opposed to the p (2×4)Se structure observed on earlier samples.

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