High J_c YBCO coated conductors on non-magnetic metallic substrate using YSZ-based buffer layer architecture

摘要

Biaxially aligned YBa_2Cu_3O_(7-δ)(YBCO) thick films were deposited by pulsed laser ablation technique on cube textured non-magnetic Ni_(89)V_(11) (Ni-V) substrate, using CeO_2/YSZ/CeO_2/NiO buffer layer architecture. The first NiO seed layer was formed by epitaxial oxidation of the Ni-V substrate. Structural analyses show typical full width at half maximum values of Φ- and ω-scans less than 10°and 8°, respectively. The highest value obtained for the critical current density at 77 K and zero magnetic field was 6 x 10~5 A cm~(-2), which is close to that obtained for YBCO films grown on CeO_2/NiO buffer layer architecture.