Battaglia, Corsin Schwier, Eike Fabian Monney, Claude Didiot, Clément Mariotti, Nicolas Gaál-Nagy, Katalin Onida, Giovanni Garnier, Michael G. Aebi, Philipp 2011-03-14 Using angle-resolved photoelectron spectroscopy we investigate the electronic valence band structure of the Si(331)-(12 × 1) surface reconstruction for which we recently proposed a structural model containing silicon pentamers as elementary structural building blocks. We find that this surface, reported to be metallic in a previous study, shows a clear band gap at the Fermi energy, indicating semiconducting behavior. An occupied surface state, presumably containing several spectral components, is found centered at − 0.6 eV exhibiting a flat energy dispersion. These results are confirmed by scanning tunneling spectroscopy and are consistent with recent first-principles calculations for our structural model. application/pdf https://folia.unifr.ch/global/documents/301842 https://folia.unifr.ch/documents/301842/files/aeb_vbs.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/23/13/135003 info:eu-repo/semantics/openAccess License undefined Journal of Physics: Condensed Matter. - 2011, vol. 23, no. 13, p. 135003 info:eu-repo/classification/udc/53 Valence band structure of the Si(331)-(12 × 1) surface reconstruction http://purl.org/coar/resource_type/c_6501