Low Temperature Phase Formation of Tl-Based Superconducting Thin Films in Reduced Oxygen Atmosphere

C. Y. Wu, F. Foong, S. H. Liou, J. C. Ho

Research output: Contribution to journalLetterpeer-review

6 Scopus citations

Abstract

11-Ba-Ca-Cu-O superconducting thin films were prepared by magnetron sputtering with post-annealing in a reduced oxygen atmosphere. Single phase Tl2Ba2Ca2Cu3Ox can form on the MgO substrate at 800°C under P(02) =0.1 atm. However the phase formation temperature can be affected by the starting composition of the film. T11Ba2Ca2Cu3Ox phase can be formed by simply lowering the Tl2O pressure. The thermal stability of Tl2Ba2Ca2Cu3Ox phase was studied by resistivity measurements at high temperatures.

Original languageEnglish (US)
Pages (from-to)1205-1207
Number of pages3
JournalIEEE Transactions on Applied Superconductivity
Volume3
Issue number1
DOIs
StatePublished - Mar 1993

ASJC Scopus subject areas

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

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