Solid phase epitaxy of Bi2Sr2CaCu2O x superconducting thin films

J. Chen, H. A. Lu, F. Dimeo, B. W. Wessels, D. L. Schulz, Tobin J Marks, J. L. Schindler, C. R. Kannewurf

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Abstract

Epitaxial superconducting Bi2Sr2CaCu 2Ox (BSCCO) thin films have been formed by solid phase epitaxy from amorphous films deposited by metallorganic chemical vapor deposition. (100) MgO and LaAlO3 single crystals were used as the substrates. After high-temperature annealing in flowing oxygen, the films consist predominantly of the BSCCO (2212) phase and are epitaxial to the LaAlO3 with the c axis perpendicular to the substrate surface. The epitaxial structure of the films is confirmed by x-ray diffraction measurements including θ/2θ and in-plane Φ scans as well as by cross-sectional high-resolution transmission electron microscopy. Four-probe resistivity measurements show that the critical temperature of the film on LaAlO3 is 78 K. The critical current density of the epitaxial layer was one order of magnitude greater than that of textured films on MgO.

Original languageEnglish
Pages (from-to)4080-4082
Number of pages3
JournalJournal of Applied Physics
Volume73
Issue number8
DOIs
Publication statusPublished - 1993

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Chen, J., Lu, H. A., Dimeo, F., Wessels, B. W., Schulz, D. L., Marks, T. J., Schindler, J. L., & Kannewurf, C. R. (1993). Solid phase epitaxy of Bi2Sr2CaCu2O x superconducting thin films. Journal of Applied Physics, 73(8), 4080-4082. https://doi.org/10.1063/1.352834