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

C. Y. Wu, F. Foong, Sy-Hwang Liou, J. C. Ho

Research output: Contribution to journalLetter

6 Citations (Scopus)

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 - Jan 1 1993

Fingerprint

Superconducting films
magnetron sputtering
thermal stability
Oxygen
atmospheres
electrical resistivity
annealing
oxygen
thin films
Magnetron sputtering
Thermodynamic stability
Annealing
Temperature
temperature
Substrates
Chemical analysis

ASJC Scopus subject areas

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

Cite this

Low Temperature Phase Formation of Tl-Based Superconducting Thin Films in Reduced Oxygen Atmosphere. / Wu, C. Y.; Foong, F.; Liou, Sy-Hwang; Ho, J. C.

In: IEEE Transactions on Applied Superconductivity, Vol. 3, No. 1, 01.01.1993, p. 1205-1207.

Research output: Contribution to journalLetter

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