Bend conductance of crossed wires in the presence of Andreev scattering

Details Bend conductance of crossed wires in the presence of Andreev scattering Bend conductance of crossed wires in the presence of Andreev scattering

1994-04-12

arxiv.org/abs/cond-mat/9404029v1

Physics

Condensed Matter

9 pages, 1 postscript figure available on request to pya055@cent1.lancs.ac.uk (Simon Robinson), LaTex version 2.09

Scientific paper

We study the 4-probe bend conductance $G_{14,32}$ of a mesoscopic crossed wire structure in the ballistic regime in the absence of a magnetic field, which for normal devices is usually negative. We predict that for sufficiently large devices and for small applied voltages $G_{14,32}$ becomes positive in the presence of Andreev scattering, but at large voltages $G_{14,32}$ remains negative.

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