• DC-sputtered Bi(Pb)SrCaCuO films on single (MgO) and polycrystalline (MgO, CuO) substrates

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    • Keywords

       

      DC sputtering; superconducting films; CuO substrate, MgO substrate; polycrystalline substrates

    • Abstract

       

      Bi(Pb)SrCaCuO films have been deposited on single (MgO) and polycrystalline (poly MgO, CuO) substrates by DC sputtering. All the films became superconducting after post-annealing them in air. The films on single crystal MgO showedTc onset at 120 K andTc at 92 K. However, the extrapolated zero resistivity is obtained at 106 K. The ac susceptibility showed an onset at 106 K and a sharp transition at 85 K. The films on poly MgO and poly CuO had aTc=72 K. The preparation, X-ray diffraction and morphology of these samples are presented.

    • Author Affiliations

       

      S K Das1 R Suryanarayanan1 B Lecuyer1 2 O Gorochov1

      1. Laboratoire de Physique des Solides de Bellevue, C.N.R.S., Meudon - 92195, France
      2. Institut d’Electronique Fondamentale, Bat. 220, Orsay - 91405, France
    • Dates

       
  • Bulletin of Materials Science | News

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