Deposition and characterization of YBCO/CeO/sub 2/ thin films prepared by thermal co-evaporation on metallic tapes

A market penetration of HTS-based applications requires the development of a low-cost continuous production system for long HTS conductors. We report on deposition and characterization of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta///CeO/sub 2/ structures on metallic substrates prepared by a thermal co-evaporation technique. X-ray diffraction analysis reveals good biaxial orientation of both layers with inand out-of-plane FWHM = 8/spl deg/ and 9/spl deg/ respectively on biaxially textured Ni-Fe or Ni-W and on polycrystalline Hastelloy C276 substrates. YBCO films are metallic and superconducting with T/sub c,onset/ /spl sim/ 88 K. Work is in progress to scale up the process for long tapes.