Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2000-07-21
in "Kondo Effect and dephasing in low-dimensional metallic systems", NATO Science Series II, vol. 50, 53 (Kluwer Academic Publ
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
11 pages, 7 figures. Invited talk, NATO Adv. Research Workshop on "Size dependent magnetic scattering", Pecs, Hungary, May 18
Scientific paper
We present data of transport measurements through a metallic nanobridge exhibiting diffusive electron transport. A logarithmic temperature dependence and a zero-bias anomaly in the differential conductance are observed, independent of magnetic field. The data can be described by a single scaling law. The theory of electron-electron interaction in disordered systems, adapted to the case of finite-size systems in non-equilibrium, yields quantitative agreement with experiment. Measurements of universal conductance functuations support the assumptions of the theory about the electronic phase coherence.
Häussler R.
Kroha Johann
Löhneysen Hilbert v.
Weber Heiko B.
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