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

H. E. Horag, J. H. Lu, J. M. Wu, Shieh-Yueh Yang, Hong-Chang 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
    Publication statusPublished - 1997 Dec 1

    ASJC Scopus subject areas

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

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    Horag, H. E., Lu, J. H., Wu, J. M., Yang, S-Y., Yang, H-C., & Chern, J. D. (1997). Effects of Magnetic Fields and Microwave Irradiation on Step-edge and Bi-epitaxial YBa2Cu3Oy SQUIDs. IEEE Transactions on Applied Superconductivity, 7(2 PART 3), 3690-3693.