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Scanning tunneling microscopy of laser-deposited YBa2Cu3O7 thin films on Y-stabilized zirconia substrate

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Abstract

The surface morphology and growth mechanism ofc-oriented YBa2Cu3O7 thin films deposited on Y-stabilized zirconia substrate by laser deposition has been investigated with scanning tunneling microscopy. Both screw dislocation and layered island growth processes took place. Surface features such as screw dislocation, steps, subgrain boundaries, holes, and troughs were present, suggesting that they may act as pinning sites for flux lines. A thin layer of nonsuperconducting material with a thickness of a few angstroms is seen on the surface of the film.

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Authors and Affiliations

  1. National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, China

    J. Z. Liu, L. Li, Y. J. Tian, H. J. Tao & Z. X. Zhao

  2. Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, China

    S. F. Xu, H. B. Lu, Y. L. Zhou, Z. H. Chen, D. F. Cui & G. Z. Yang

  3. Institute of Chemistry, Chinese Academy of Sciences, 100080, Beijing, China

    F. Gao & C. Bai

Authors
  1. J. Z. Liu
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  2. L. Li
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  3. Y. J. Tian
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  4. S. F. Xu
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  5. H. B. Lu
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  6. Y. L. Zhou
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  7. Z. H. Chen
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  8. D. F. Cui
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  9. H. J. Tao
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  11. G. Z. Yang
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  12. F. Gao
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  13. C. Bai
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Liu, J.Z., Li, L., Tian, Y.J. et al. Scanning tunneling microscopy of laser-deposited YBa2Cu3O7 thin films on Y-stabilized zirconia substrate. J Supercond 8, 103–108 (1995). https://doi.org/10.1007/BF00732249

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  • DOI: https://doi.org/10.1007/BF00732249

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