Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa2Cu3Oy SQUIDs

H. E. Horag, J. H. Lu, J. M. Wu, S. Y. Yang, H. C. Yang, J. D. Chern

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Current-voltage (I-V) curves of step-edge YBa2Cu3Oy junctions SQUIDs and Junctions in parallel in a magnetic field and under microwave irradiation were measured. IC-curves for a single Josephson junctions show Fraunhofer diffraction pattern. The voltage of SQUIDs and Josephson junctions in parallel at a constant bias current is modulated by external magnetic fields. In additional to integer Shapiro steps non-integer constant-voltage steps were observed under microwave irradiation in bi-epitaxial SQUIDs. The noninteger voltage steps can be modulated by the microwave power and the applied magnetic field.

Original languageEnglish
Pages (from-to)3690-3693
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume7
Issue number2 PART 3
DOIs
Publication statusPublished - 1997

ASJC Scopus subject areas

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

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