Abstract

An intercomparison of Fluctuation Induced Conductivity (FIC) of Cu 0.5Tl 0.5Ba 2Ca n −1Cu n O 2 n +4− y ( n = 2, 3, 4) [CuTl-12( n − 1) n] superconductor thin films is given. We tried to find any correlation between the critical temperature and the parameters extracted from the excess conductivity data i.e. cross-over temperature, pseudogap temperature and fluctuation amplitudes. We found that the critical temperature seems to depend on the fluctuation amplitude; greater the fluctuation amplitude higher is the critical temperature.

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