π-d backbonding band dispersion and final-state effects for the (2×1) p2mg 
phase of CO on Ni(110)

Kuhlenbeck, H.; Saalfeld, H. B.; Buskotte, U.; Neumann, M.; Freund, Hans-Joachim; Plummer, E. W.

doi:10.1103/PhysRevB.39.3475

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π-d backbonding band dispersion and final-state effects for the (2×1) p2mg phase of CO on Ni(110)

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Kuhlenbeck, H., Saalfeld, H. B., Buskotte, U., Neumann, M., Freund, H.-J., & Plummer, E. W. (1989). π-d backbonding band dispersion and final-state effects for the (2×1) p2mg phase of CO on Ni(110). Physical Review B, 39(6), 3475-3488. doi:10.1103/PhysRevB.39.3475.

Cite as: https://hdl.handle.net/21.11116/0000-000E-54FC-8

Abstract

Angle-resolved photoemission spectroscopy has been utilized to measure the dispersion and symmetry of the spectral features in the d-band region of Ni induced by the adsorption of CO. Very strong alterations of the d-band emission characteristics are observed when CO is adsorbed on Ni(110) in the (2×1) p2mg ordered phase. The high density and unique symmetry of this overlayer allow an unambiguous identification of the spectral features as the two-dimensional π-d surface bands induced by the chemical bond of CO to Ni, i.e., by the CO 2π–Ni 3d interaction.