Burgi, L.Petersen, L.Brune, H.Kern, K.2009-04-142009-04-142009-04-14200010.1016/S0039-6028(99)01102-4https://infoscience.epfl.ch/handle/20.500.14299/37163WOS:0000856157000042510Dispersion relations of the s-p derived surface state on (111) surfaces of silver and copper have been measured using low-temperature scanning tunneling microscopy and spectroscopy. For silver as well as for copper we find a significant deviation from a parabolic dispersion characteristic of free-electron-like systems. A simple tight-binding model accounts for the trends in the measured dispersions. (C) 2000 Elsevier Science B.V. All rights reserved.Surface Electronic and Atomic StructureSpectroscopySpin-Polarized STMtext::journal::journal article::research article