Regensburg 2004 – wissenschaftliches Programm

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HL: Halbleiterphysik

HL 5: Transporteigenschaften

HL 5.6: Vortrag

Montag, 8. März 2004, 11:30–11:45, H14

The Influence of Weak Disorder on Ballistic Transport in Mesoscopic Systems — •Kai Bröking und Ragnar Fleischmann — MPI für Strömungsforschung, Bunsenstr. 10, 37073 Göttingen

Recent experimental and theoretical work [1] has given new insight into the properties of the electron flow in two-dimensional electron gases at low temperatures: small angle scattering leads to a pronounced branching of the electron flow.
Studying the electron motion on length scales shorter than the mean free path in the single-electron picture, we focus on the effects of branching on transport phenomena which are assumed to be ballistic.
Topinka, Leroy, Fleischmann, Westervelt, Shaw, Heller, Maranowski and Gossard, Nature, 410 (2001), pp. 183-186