Fluctuation paraconductivity in superconducting multilead structures abovethe transition temperature

Fluctuation paraconductivity slightly above the superconducting transition temperature is studied theoretically in mesoscopic structures connected to massive normal-metal probes. The paraconductivity, consisting of the Aslama zov-Larkin (AL) and Maki corrections, is shown to modify spatial voltage di stribution. A simple method is presented for the calculation of voltage dif ference in quasi-one-dimensional multilead structures. It is shown that due to the nonlocal AL correction, finite voltage difference arises despite th e absence of net current between two voltage probes. It is also shown that spatial variation of the AL and Maki corrections can be detected by voltage measurements with two sets of voltage probes.