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TRANSFORMATION OF THE YBCO SUPERCONDUCTING PHASE TO AN INSULATOR NONSUPERCONDUCTING PHASE.

Author(s) : GRAMMATIKAKIS J.

Type of article: Article

Summary

THREE YBCO SAMPLES WERE PREPARED UNDER SIMILAR CONDITIONS. THE STARTING MATERIALS WERE YTTRIUM OXIDE (99.99 %), COPPER OXIDE (99.999 %), AND BARIUM CARBONATE (99.999 %). ALL THE SPECIMENS DEMONSTRATED A MEISSNER EFFECT AT LIQUID-NITROGEN TEMPERATURE. FROM TEMPERATURE-DEPENDENT RESISTIVITY MEASUREMENTS, THE CRITICAL TEMPERATURE FOR THE 3 SAMPLES WAS FOUND TO BE AROUND 93 K, IN AGREEMENT WITH OTHER REPORTS.

Details

  • Original title: TRANSFORMATION OF THE YBCO SUPERCONDUCTING PHASE TO AN INSULATOR NONSUPERCONDUCTING PHASE.
  • Record ID : 1992-0970
  • Languages: English
  • Source: J. Supercond. - vol. 3 - n. 4
  • Publication date: 1990/12
  • Document available for consultation in the library of the IIR headquarters only.

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