Multilayer YBaCuO structures using ion-assisted intermediate layers

Multilayer thin films of YBa₂Cu₃O_7-δ (YBCO) were deposited in situ on yttria-stabilized zirconia (YSZ) and CeO₂ intermediate layers grown using ion-assisted pulsed-laser deposition. These structures were grown on amorphous SiO₂ dielectric layers. A critical current density of 3x10⁵ A/cm² was obtained for a YBCO film grown on SiO₂-coated Haynes Alloy 230 substrate. Improvement of the critical current density was obtained below 77 K by doping the YBCO with 10% Ag. Angular magnetoresistance measurements provide further information about the texture of this film.