Highly oriented Tl2Ba2Ca2Cu 3O10 thin films by pulsed laser evaporation

S. H. Liou, K. D. Aylesworth, N. J. Ianno, B. Johs, D. Thompson, D. Meyer, John A. Woollam, Colleen Barry

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Abstract

We have fabricated superconducting thin films on MgO(100) substrates with nearly pure Tl2Ba2Ca2Cu3O 10 (2:2:2:3) phase using pulsed laser evaporation and post-annealing. The films had c axes perpendicular to the substrates. Superconducting films with onset temperatures of 125 K and zero resistance at 110 K were obtained. X-ray microprobe fluorescence measurements indicate that a typical composition of films is Tl0.66Ba1.77Ca 1.46Cu3Ox, which is low in Tl compared to that expected for the 2:2:2:3 phase. A typical grain size is greater than 10 μm as revealed by scanning electron microscopy.

Original languageEnglish (US)
Pages (from-to)760-762
Number of pages3
JournalApplied Physics Letters
Volume54
Issue number8
DOIs
StatePublished - 1989

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Liou, S. H., Aylesworth, K. D., Ianno, N. J., Johs, B., Thompson, D., Meyer, D., Woollam, J. A., & Barry, C. (1989). Highly oriented Tl2Ba2Ca2Cu 3O10 thin films by pulsed laser evaporation. Applied Physics Letters, 54(8), 760-762. https://doi.org/10.1063/1.101473