ELECTRICAL-PROPERTIES OF BI2SR2CACU2OX THIN-FILMS PREPARED INSITU BY PULSED LASER DEPOSITION

Thin Bi2Sr2CaCu2Ox films were prepared onto <100 > SrTiO3 single crystalline substrates by pulsed laser deposition. The inductively measured Tc, onset reached values up to 83 K. Critical current densities and resistive transitions were measured in external magnetic fields up to 7 T with the field direction parallel and perpendicular to the c-axis of the film. The measured jc values reached 1×107 A/cm2 at 4.2 K and 1×106 A/cm2 at 5o K, though pattering by wet chemical photolithography caused serious degradation of Tc. © 1990.