Observation of two in-plane epitaxial states in YBa2Cu 3O7-δ films on yttria-stabilized ZrO2

S. M. Garrison, N. Newman, B. F. Cole, K. Char, R. W. Barton

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We demonstrate that two distinctly different in-plane epitaxial states of c-axis oriented YBa2Cu3O7-δ (YBCO) films on (100) yttria-stabilized ZrO2 (YSZ) single-crystal substrates can be produced independently, namely, YBCO [100]//YSZ [100] or YBCO [100]//YSZ [110]. Both in-plane epitaxial relationships can be modeled by matching YBCO and YSZ oxygen sublattices at the film-substrate interface. High critical current densities (Jc), ∼5×105-1×106 A/cm2 at 77 K, are achieved when ≳90 vol % of either orientation is present. Jc can be degraded nearly four orders of magnitude in films with mixed orientation.

Original languageEnglish (US)
Pages (from-to)2168-2170
Number of pages3
JournalApplied Physics Letters
Issue number19
StatePublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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