Microstructure of epitaxial YbBa2Cu3O7 superconducting films grown by a new liquid-gas-solidification technique

C. H. Chen, H. S. Chen, S. H. Liou

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We have studied the microstructures of epitaxial YbBa2Cu 3O7 superconducting films grown on SrTiO3[100] and [110] substrates by a new liquid-gas-solidification processing technique. Films grown on SrTiO3[100] and [110] substrates are epitaxially oriented with [001] and [110] axes normal to the film surface. Twinned domains of ∼200 Å in size are observed in the [001] oriented films. Most defects observed can be attributed to the presence of stacking faults along the c axis. The presence of Cu-O bilayer defects is also observed. Rapid oxygen diffusion in the liquid phase is found to play an important role in the microstructure of the thin films.

Original languageEnglish (US)
Pages (from-to)2339-2341
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - Dec 1 1988


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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