Planar intrinsic Josephson junctions with in-plane aligned YBCO films

L. Zhang, M. Moriya, T. Kobayashi, T. Goto, M. Mukaida

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Planar type devices were fabricated by patterning in-plane aligned YBa2Cu3O7-δ (YBCO) films. The current-voltage characteristics along the c-axis at various temperatures and oxygen contents were measured. The current voltage curves showing supercurrent and hysteresis were obtained for the samples annealed at an oxygen pressure of 1.3 × 104 Pa, while the supercurrent and hysteresis became smaller and even disappeared as the oxygen pressure decreased. The relationships between the critical currents and temperatures are similar to those of d-wave superconducting tunnel junctions. These results indicate the formation of stacks of intrinsic Josephson junctions, which are useful for developing high-frequency electron devices.

Original languageEnglish
Pages (from-to)1775-1777
Number of pages3
JournalSuperconductor Science and Technology
Issue number12
Publication statusPublished - Dec 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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