Signature of directed chaos in the conductance of a nanowire.
We study the conductance of chaotic or disordered wires in a situation where equilibrium transport decomposes into biased diffusion and a countermoving regular current. A possible realization is a semiconductor nanostructure with a transversal magnetic field and suitably patterned surfaces. We find a nontrivial dependence of the conductance on the wire length. It differs qualitatively from Ohm's law by the existence of a characteristic length scale and a finite saturation value.
Prusty
Manamohan
M
Max-Planck-Institut für Dynamik und Selbstorganisation, und Fakultät für Physik, Universität Göttingen, Bunsenstrasse 10, D-37073 Göttingen, Germany.
Schanz
Holger
H