TY - JOUR
T1 - Unoccupied surface state on Pt(111) revealed by scanning tunneling spectroscopy
AU - Wiebe, J.
AU - Meier, F.
AU - Hashimoto, K.
AU - Bihlmayer, G.
AU - Blügel, S.
AU - Ferriani, P.
AU - Heinze, S.
AU - Wiesendanger, R.
PY - 2005/11/15
Y1 - 2005/11/15
N2 - We measured the dispersion of an unoccupied surface state on Pt(111) by imaging scattering states at point defects and step edges using scanning tunneling spectroscopy. By comparison to first-principles electronic structure calculations the state is assigned to an sp-derived surface band at the lower edge of the projected bulk band gap. In dI/dV(V) curves, the onset of the surface-state band appears as a rather broad feature. Its shape results from two spin-orbit split branches with nearly linear dispersion, one of them merging into bulk states at higher energies.
AB - We measured the dispersion of an unoccupied surface state on Pt(111) by imaging scattering states at point defects and step edges using scanning tunneling spectroscopy. By comparison to first-principles electronic structure calculations the state is assigned to an sp-derived surface band at the lower edge of the projected bulk band gap. In dI/dV(V) curves, the onset of the surface-state band appears as a rather broad feature. Its shape results from two spin-orbit split branches with nearly linear dispersion, one of them merging into bulk states at higher energies.
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U2 - 10.1103/PhysRevB.72.193406
DO - 10.1103/PhysRevB.72.193406
M3 - Article
AN - SCOPUS:29744441346
SN - 1098-0121
VL - 72
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 19
M1 - 193406
ER -