Research Papers in Physics and Astronomy


Date of this Version

July 1985


Published in the Journal of Vacuum Science and Technology A 3 (4), Jul/Aug 1985. Copyright 1985 American Vacuum Society. Used by permission. For free online abstracts, see


Molecular bromine dissociatively adsorbs to form a chemisorbed overlayer on Ni(100). The bromine induced 4px,y and 4pz orbitals have been identified at Γ̅ with binding energies of 6.6 ± 0.2 eV and 5.3 ± 0.2 eV below the Fermi energy, respectively. The relative ionization cross-section variations of the two bromine levels 4px and 4pz are observed to differ with changing photon energy.

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