Faculté des sciences

Valence band electronic structure characterization of the rutile TiO₂ (110)-(1 × 2) reconstructed surface

Sánchez-Sánchez, C. ; Garnier, M.G. ; Aebi, Philipp ; Blanco-Rey, M. ; Andres, P.L. de ; Martín-Gago, J.A. ; López, M.F.

In: Surface Science, 2012, p. -

The electronic structure of the TiO₂ (110)-(1 × 2) surface has been studied by means of angular resolved ultraviolet photoemission spectroscopy (ARUPS). The valence band dispersion along the high symmetry surface directions, [001] and [1–10], has been recorded. The experimental data show no dispersion of the band-gap Ti 3d states. However, the existence of dispersive bands along the [001]... Plus

Ajouter à la liste personnelle
    Summary
    The electronic structure of the TiO₂ (110)-(1 × 2) surface has been studied by means of angular resolved ultraviolet photoemission spectroscopy (ARUPS). The valence band dispersion along the high symmetry surface directions, [001] and [1–10], has been recorded. The experimental data show no dispersion of the band-gap Ti 3d states. However, the existence of dispersive bands along the [001] direction located at about 7 eV below the Fermi level is reported. The existence of two different contributions in the emission from the defects-related state located in the gap of the surface is univocally shown for the first time.