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TT: Tiefe Temperaturen

TT 7: Superconductivity & Solids At Low Temperature - Poster Session

TT 7.14: Poster

Montag, 27. März 2006, 14:00–17:45, P1

Physical properties of chemically deposited La₂Zr₂O₇ and CeO₂ buffer layers on cube textured Ni-4 at.% W substrates — •Gunter Kotzyba, Bernhard Obst, Rainer Nast, and Wilfried Goldacker — Forschungszentrum Karlsruhe, Institut für Technische Physik, P.O. Box 3640, 76021 Karlsruhe

The chemical solution deposition route for YBCO-coated conductors is of interest as a promising way to develop a low cost conductor. Thin films of La₂Zr₂O₇ and CeO₂ were prepared on Ni-4 at.% W by dip coating. The layers serve as buffer for depositing superconducting YBCO on top of it. We systematically investigated the dependence of the thickness on the viscosity and the concentration of the La (III) and Ce (IV) precursor solutions by means of a cone plate rheometer and an ICP OES. The roughness was analysed with a profilometer, the thickness determination was done by X-ray microanalysis. EBSD mappings show very good cube in-plane and out-of-plane texture.