Angle-resolved photoemission spectroscopy utilizing synchrotron radiation has been used to study the electronic states of the Ni(110)(1×2)-H reconstructed surface at 80 K. An H-induced state, split off from the Ni bulk bands, is found at 9.0 eV below the Fermi energy at. This H split-off state disperses upwards by 3.1 eV with k? in the  (X) azimuth whereas it exhibits no measurable dispersion in the  (Y) azimuth. The intrinsic Ni(110) surface states were not identified along the line in k space from to X. It was found that the 3d-like 1-symmetry bulk states at 23 eV at are markedly reduced by H adsorption, indicating that the Ni 3d (1) states participate in the bonding.
ASJC Scopus subject areas
- Condensed Matter Physics