Lateral Jc distribution of YBCO coated conductors fabricated by IBAD/MOCVD process

Abstract The lateral J c distributions of YBCO coated conductors fabricated by IBAD/MOCVD process were measured by the magnetic knife method. In the samples, YBCO layer was deposited by MOCVD process on the IBAD template of GZO together with CeO 2 layer. Ag-protective layer was put on YBCO layer. A series of voltage taps were attached with 10 mm separation, and the lateral J c distribution was measured in each section between two voltage taps. A sample YBCO coated conductor in which YBCO layer was deposited five times using an up-to-date set-up shows a rather uniform J c distribution. The magnitude of J c reaches 2 × 10 10  A/m 2 (2 MA/cm 2 ) in wide area of the conductor.