Preparation of high Tc Tl-Ba-Ca-Cu-O thin films by pulsed laser evaporation and Tl2O3 vapor processing

B. Johs, D. Thompson, N. J. Ianno, John A. Woollam, S. H. Liou, A. M. Hermann, Z. Z. Sheng, W. Kiehl, Q. Shams, X. Fei, L. Sheng, Y. H. Liu

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Abstract

Tl-Ba-Ca-Cu-O superconducting thin films with zero-resistance temperatures up to 115 K have been prepared using a Tl2 O3 vapor process on Ba-Ca-Cu-O precursor thin films. The Ba-Ca-Cu-O thin films were made by laser deposition on Y-stabilized ZrO2 substrates. This technique minimizes problems caused by the toxicity of Tl2 O3, and its subsequent decomposition to the volatile and toxic Tl2 O upon heating. Therefore, it may have practical application in the fabrication of high Tc Tl-Ba-Ca-Cu-O superconducting thin-film devices.

Original languageEnglish (US)
Pages (from-to)1810-1811
Number of pages2
JournalApplied Physics Letters
Volume54
Issue number18
DOIs
StatePublished - Dec 1 1989

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Johs, B., Thompson, D., Ianno, N. J., Woollam, J. A., Liou, S. H., Hermann, A. M., Sheng, Z. Z., Kiehl, W., Shams, Q., Fei, X., Sheng, L., & Liu, Y. H. (1989). Preparation of high Tc Tl-Ba-Ca-Cu-O thin films by pulsed laser evaporation and Tl2O3 vapor processing. Applied Physics Letters, 54(18), 1810-1811. https://doi.org/10.1063/1.101493