Y2O3and MgO-based buffer layer architectures on non-magnetic cube textured Ni-V substrates were studied for YBa2Cu3O7-δ(YBCO) coated conductors fabrication using both pulsed laser deposition and electron beam evaporation. The Y2O3films exhibited a biaxial texture with ψ and ω-scans full width at half maximum (FWHM) of about 11° and 7° and a smooth and continuous surface. YBCO thick films deposited on CeO2/Y2O3/Ni-V and CeO2/Y2O3/NiO/Ni-V architectures were mainly c-axis oriented showing a Tc(R=0)above 85 K. MgO films were grown by electron beam evaporation both directly on metallic substrates and with a Pd intermediate layer. The MgO films grown on Ni-V substrates show a good texture and good surface morphological properties. The MgO deposition on Pd buffered Ni-V substrate leads to films with better structural properties with respect to MgO depositon on bare Ni-V substrate, showing ψ and ω-scans FWHM up to 8° and 5°, respectively. In spite of the interdiffusion between Pd buffer layer and Ni-V substrate, the MgO films preserve their structural and morphological properties when annealed at typical YBCO deposition temperature.
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Condensed Matter Physics