Abstract
The nonlocal current response to an electric field characteristic of the superconducting state has been predicted to be observable above the transition temperature Tc over a length scale set by the correlation length for superconducting fluctuations, ξ(T). A manifestation of this effect has been found in a multiterminal measurement of a square superconducting loop or characteristic size, L∼ξ(T). The ratio of the voltages measured by two different sets of probes attached at different positions is observed to oscillate as a function of the flux threading the loop. This nonlocal effect is distinct from analogous phenomena associated with the coherent transport of electrons in mesoscopic structures
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