Browsing by Subject "Low temperature effects"

Browsing by Subject "Low temperature effects"

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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 ...
  • Enhanced shot noise in tunneling through a stack of coupled quantum dots 
    Barthold, P.; Hohls, Frank; Maire, Niels; Pierz, Klaus; Haug, Rolf J. (College Park, MD : American Physical Society, 2006)
    We have investigated the noise properties of the tunneling current through vertically coupled self-assembled InAs quantum dots. We observe super-Poissonian shot noise at low temperatures. For increased temperature this ...