Signature of directed chaos in the conductance of a nanowire.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Physical review letters
دوره 96 13 شماره
صفحات -
تاریخ انتشار 2006