Auflistung nach Schlagwort "Electric conductance"

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  • Coupled Pb chains on Si(557): Origin of one-dimensional conductance 
    Tegenkamp, Christoph; Ohta, T.; McChesney, J.L.; Dil, H.; Rotenberg, E.; Pfnür, Herbert; Horn, K. (College Park, MD : American Physical Society, 2008)
    The Pb/Si(557) system exhibits a strong anisotropy in conductance below 78 K, with the evolution of a characteristic chain structure. Here we show, using angle-resolved photoemission, that chain ordering results in complete ...
  • Kondo effect in a few-electron quantum ring 
    Keyser, U.F.; Fühner, C.; Borck, S.; Haug, Rolf J.; Bichler, M.; Abstreiter, G.; Wegscheider, W. (College Park, MD : American Physical Society, 2003)
    A small tuneable quantum ring with less than ten electrons was shown to exhibit Aharonov-Bohm oscillations as well as Coulomb blockade. At strong coupling to the leads, evidence of a Kondo effect induced by a single spin ...
  • Switching between one and two dimensions: Conductivity of Pb-induced chain structures on Si(557) 
    Tegenkamp, Christoph; Kallassy, Z.; Pfnür, Herbert; Günter, H.-L.; Zielasek, V.; Henzler, M. (College Park, MD : American Physical Society, 2005)
    We show in a combined study of four-point conductance measurement and tunneling microscopy that surface state conductance induced by one monolayer of Pb on Si(557) can be quasi one dimensional with conductivity values close ...