PREPARATION AND CHARACTERIZATION OF BI2SR2CA1CU2O8-FILMS MADE BY LPVD(X THIN)

We report about the preparation of lead-free Bi-Sr-Ca-Cu-0 thin films of the 2212 phase by laser ablation. We have found an optimal regime f or preparation, which makes it possible to produce films with T(c0) > 80 K and j(c) (60 K) > 10(6) A/cm2 on SrTiO3 substrates. The films are characterized by current transport measurements, RBS, XRD and SEM. We have found a dependence of the film quality on substrate temperature, oxygen partial pressure, pulse repetition rate and post-annealing con ditions. First investigations on BSCCO/SrTiO3/BSCCO multilayer systems were performed.