Abstract
The structural, electrical and magnetic properties are compared for three superconducting Tl-Ca-Ba-Cu-O thin films prepared by different deposition and sintering protocols. One film containing a mixture of Tl2Ca2Ba2Cu3Ox and Tl2Ca2Ba2Cu3Oy structural phases has the best superconducting properties. Deposition of a Tl-free Ca-Ba-Cu-O precursor film followed by sintering in Tl-O vapor may be the preferred protocol to obtain a single structural phase.
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Acknowledgement
This study supported, in part, by the U.S. DOE, Office of Basic Energy Sciences, under contract No. DE-AC-04-76DP00789. Technical assistance of R. P. Hellmer, M. A. Mitchell, P. P. Newcomer, and T. Castillo is acknowledged.
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Morosin, B., Venturini, E.L., Tigges, C.P. et al. Tl-Based Films: A Comparison of Processing Procedures. MRS Online Proceedings Library 275, 559–564 (1992). https://doi.org/10.1557/PROC-275-559
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DOI: https://doi.org/10.1557/PROC-275-559