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Artificial in-plane ordering of textured YBa2Cu3O7−x films deposited on polycrystalline yttria-stabilized zirconia substrates


Anisotropie surface texturing of the polycrystalline yttria-stabilized zirconia substrates, prior to YBa2Cu3O7−x film deposition, is shown to promote in-plane (basal plane) ordering of the film growth in addition to thec-axis texturing. TheJ c 's of the films in the weak-link-dominated low-field regime are enhanced considerably, and this result is attributed to the reduction of weak links resulting from a reduction in the number of in-plane large-angle grain boundaries.

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The authors acknowledge the support and encouragement of V. G. Keramidas and P. L. Key. This work was supported by the Electric Power Research Institute (Contract No. RP 7911-13).

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Harshavardhan, K.S., Rajeswari, M., Hwang, D.M. et al. Artificial in-plane ordering of textured YBa2Cu3O7−x films deposited on polycrystalline yttria-stabilized zirconia substrates. J Supercond 5, 533–537 (1992).

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Key words

  • YBCO films
  • in-plane ordering
  • critical current density
  • surface texturing