INTERPLAY BETWEEN THERMAL FLUCTUATIONS AND UNIFORMLY DISTRIBUTED T-C INHOMOGENEITIES - APPLICATION TO INHOMOGENEOUS BI2SR2CA1CU2O8 CRYSTALS

The effective medium approach proposed some years ago by Maza and Vida l is used here to take into account the influence of small T-c-inhomog eneities, at long Length scales and uniformly distributed on the measu red (or effective) in-plane paraconductivity, Delta sigma(ab)(e), and fluctuation-induced magnetoconductivity, <Delta(sigma)over tilde(ab)(e )>, above T-c, and on the scaling of the excess of the in-plane conduc tivity around T-c, in copper oxide superconductors. We use then these results to explain simultaneously and quantitatively the experimental data that we have obtained in. Bi-2212 crystals with small oxygen cont ent inhomogeneities.