Deposition and characterization of metal propionate derived epitaxial YBa

Achille Angrisani Armenio, Giuseppe Celentano, Alessandro Rufoloni, Angelo Vannozzi, Andrea Augieri, Valentina Galluzzi, Antonella Mancini, Lelia Ciontea, Traian Petrisor, Giorgio Contini, Ivan Davoli

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13 Citations (Scopus)

Abstract

A new modified TFA-MOD method for the YBa2Cu3O7-x(YBCO) deposition, using only barium trifluo- roacetate, is presented. The yttrium and copper trifluoroacetates were replaced by the alcoholic solutions of Cu and Y acetates dispersed in propionic acid to prepare a stable coating solution. Due to the smaller amount of evolved hydrofluoric acid, this method permits the shortening of the pyrolysis time by a factor 4, with respect to conventional trifluoroacetate metal organic deposition (TFA-MOD) method. The X-ray photoelectron spectroscopy (XPS) analyses, performed on a pyrolyzed sample, showed the complete decomposition of precursors. The as obtained films exhibit good morphological, structural and superconducting properties with Tc(R = 0) greater than 90 K. Transport measurements at different temperatures and applied magnetic fields have revealed promising superconducting properties of the critical current density (Jc) vs. the applied magnetic fields and the value of Jcat 77 K and zero magnetic field greater than 3 MA/cm2. © 2009 IEEE.
Original languageEnglish
Article number5153225
Pages (from-to)3204 - 3207
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - Jun 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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