Voltage modulation of high-Tc SQUIDs with step-edge junctions

J. T. Jeng, Y. C. Liu, S. Y. Yang, H. E. Horng, H. C. Yang, H. H. Sung

    Research output: Contribution to journalConference article

    1 Citation (Scopus)

    Abstract

    We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.

    Original languageEnglish
    Pages (from-to)2701-2702
    Number of pages2
    JournalPhysica C: Superconductivity and its Applications
    Volume341-348 (IV)
    DOIs
    Publication statusPublished - 2000 Jan 1
    EventInternational Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA
    Duration: 2000 Feb 202000 Feb 25

    Fingerprint

    SQUIDs
    Modulation
    modulation
    Electric potential
    electric potential
    Washers
    Critical currents
    washers
    curves
    Grain boundaries
    critical current
    grain boundaries

    ASJC Scopus subject areas

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

    Cite this

    Voltage modulation of high-Tc SQUIDs with step-edge junctions. / Jeng, J. T.; Liu, Y. C.; Yang, S. Y.; Horng, H. E.; Yang, H. C.; Sung, H. H.

    In: Physica C: Superconductivity and its Applications, Vol. 341-348 (IV), 01.01.2000, p. 2701-2702.

    Research output: Contribution to journalConference article

    Jeng, J. T. ; Liu, Y. C. ; Yang, S. Y. ; Horng, H. E. ; Yang, H. C. ; Sung, H. H. / Voltage modulation of high-Tc SQUIDs with step-edge junctions. In: Physica C: Superconductivity and its Applications. 2000 ; Vol. 341-348 (IV). pp. 2701-2702.
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    abstract = "We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.",
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    AU - Jeng, J. T.

    AU - Liu, Y. C.

    AU - Yang, S. Y.

    AU - Horng, H. E.

    AU - Yang, H. C.

    AU - Sung, H. H.

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    N2 - We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.

    AB - We studied the V-I characteristics and the voltage modulation of washer-type step-edge YBa2C3uOy dc SQUIDs. It was found that the banks of the SQUID were composed of two junctions in series. The V-I curve can be fitted to the RSJ model with a sinusoidal current phase relation for the first grain-boundary junction while the second junction show a non-sinusoidal current phase relation. The V-Φ curves of SQUIDs can be characterized by the parameters of the first junctions if the SQUID is biased at I approx. Ic1 where Ic1 is the critical current of the first junction. The implications of the data are discussed.

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