Y1Ba2Cu3O7−δ thin films grown by magnetron sputtering

Abstract

Y1Ba2Cu3O7−δ thin films were grown on (100)MgO and polycrystalline YSZ substrates by RF magnetron sputtering. We measured the magnetic field dependence of Jc of these films. The films grown on MgO with Jc of 4.0x106, 2.9 x106 and 1.5x104 A/cm2 at OT showed 7.1x105 A/cm2 at 8T, 1x104 A/cm2 at 20T and 1.1x103 A/cm2 at 5 T, respectively . We could attain a c-axis oriented film with a Jc of 1.2x104 A/cm2 on YSZ polycrystalline substrate, however, it showed greater degradation than the films grown on MgO in Jc with magnetic field.