Flux motion in YBCO biepitaxial josephson junctions

H. H. Sung, S. Y. Yang, H. E. Horng, H. C. Yang

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Abstract

We have measured the current-voltage characteristics of overdamped long YBa2Cu3O7 biepitaxial Joscphson junctions. The velocity-matching step was observed in the current-voltage characteristics with an applied magnetic field. The presence of velocity-matching steps suggests that the biepitaxial Josephson junction is formed around a dielectric-like barrier between superconducting grains. Anomalous subharmonic voltage steps were found under microwave irradiation. The relations between anomaly steps and fluxon motion are discussed.

Original languageEnglish
Pages (from-to)3937-3940
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume9
Issue number2 PART 3
DOIs
Publication statusPublished - 1999 Dec 1

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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