Development of Buffer Layers for High Quality Tl-Pb-Sr-Ba-Ca-Cu-O Thick Films on Flexible Metal Substrates

P. A. Parilla, J. M. McGraw, D. L. Schulz, J. Wendelin, R. N. Bhattacharya, R. D. Blaugher, D. S. Ginley, J. A. Voigt, E. P. Roth

Research output: Contribution to journalArticlepeer-review

4 Scopus Citations


Previous work has demonstrated the ability to grow extremely high quality Tl0. 5Pb0. 5Sr1. 6Ba0. 4Ca2Cu3Ox epitaxial films up to 15 μ m thick using melt growth techniques on single crystal LaAlO3 substrates. This melt growth process is an ideal candidate for producing high quality superconducting films on flexible metal substrates with textured buffer layers; however, the textured buffer layer of choice, cubic yttria-stabilixed zirconia (YSZ), appears to be incompatible with the melt growth of Tl-Pb-Sr-Ba-Ca-Cu-O films. In this work, we investigate textured buffer layers which are compatible with the epitaxial growth of Tl0. 5Pb0. 5Sr1. 6Ba0. 4Ca2Cu3Ox films. Crucial properties for the successful development of a suitable buffer layer are lattice matching, chemical stability, and texture. Buffer layer materials investigated are CeO2 and LaAlO3 grown using a UV (248 nm) pulsed excimer laser deposition system equipped with multiple targets and a controlled ambient. Influence of substrate temperature and ambient gas pressure and flow on buffer growth are analyzed via XRD characterization. Highly textured buffer layers have been fabricated.

Original languageAmerican English
Pages (from-to)1969-1972
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2 PART 2
StatePublished - 1997

NREL Publication Number

  • NREL/JA-590-24483


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