Development of buffer layer structures for YBa

A. Mancini, V. Boffa, G. Celentano, L. Ciontea, M. Damasceni, F. Fabbri, V. Galluzzi, G. Grimaldi, T. Petrisor, S. Ceresara, U. Gambardella

Research output: Contribution to journalArticle

Abstract

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.
Original languageEnglish
Pages (from-to)3128 - 3133
Number of pages6
JournalInternational Journal of Modern Physics B
Volume14
Issue number25-27
DOIs
Publication statusPublished - 30 Oct 2000
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Cite this

Mancini, A., Boffa, V., Celentano, G., Ciontea, L., Damasceni, M., Fabbri, F., ... Gambardella, U. (2000). Development of buffer layer structures for YBa. International Journal of Modern Physics B, 14(25-27), 3128 - 3133. https://doi.org/10.1142/S0217979200003423