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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/119/06/0631-0635

    • Keywords

       

      Superconductors; YBa2Cu3O$_x$, Bi2Sr2Ca1Cu2O$_x$; metal-organic deposition; films.

    • Abstract

       

      YBa2Cu3O$_x$ (Y-123 ) and Bi2Sr2Ca1Cu2O$_x$ (Bi-2212) films on various substrates have been prepared by Metal-Organic Deposition starting from different metallorganic fluorine-free compounds and using a very simple instrumentation. The processing conditions include a rapid pyrolysis step in air and an annealing step in oxygen for Y-123 and in air for Bi-2212. The films obtained have been characterized by X-ray diffraction (XRD) and the formation of a superconducting phase of Y-123 or Bi-2212 was confirmed measuring the critical temperature ($T_c$) with Ac-susceptibility and resistive measurements. Microstructure and final cationic ratios have been studied by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS).

    • Author Affiliations

       

      Paola Benzi1 2 Elena Bottizzo1 Chiara Demaria1 Nicoletta Rizzi1

      1. Dipartimento di Chimica Generale ed Organica Applicata and NIS Centre of Excellence, Università degli Studi di Torino, Corso Massimo d'Azeglio 48, 10125 Torino
      2. Istituto Nazionale di Fisica della Materia, Villa Brignole, Corso Perrone 24, 16152 Genova, Italy

    • Dates

       
      Published
      November 2007
      Manuscript received
      3 August 2007
      Manuscript revised
      23 November 2007

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