Abstract
We study nonlocal vortex transport in mesoscopic amorphous Nb0.7Ge0.3 samples. A dc current I is passed through a wire connected via a perpendicular channel, of a length L=2-5 mu m, with a pair of voltage probes where a nonlocal response V-nl proportional to I is measured. The maximum of R-nl=V-nl/I for a given temperature occurs at an L-independent magnetic field and is proportional to 1/L. The ...
Abstract
We study nonlocal vortex transport in mesoscopic amorphous Nb0.7Ge0.3 samples. A dc current I is passed through a wire connected via a perpendicular channel, of a length L=2-5 mu m, with a pair of voltage probes where a nonlocal response V-nl proportional to I is measured. The maximum of R-nl=V-nl/I for a given temperature occurs at an L-independent magnetic field and is proportional to 1/L. The results are interpreted in terms of the dissipative vortex motion along the channel driven by a remote current and can be understood in terms of a simple model.
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