Effects of electron irradiation on the critical current density of Y1Ba2Cu3Ox superconductors

M. H. Abdullah, K. Shiraishi

    Research output: Contribution to journalArticle

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    Abstract

    Temperature and magnetic field dependence of the transport critical current density, Jc, of the polycrystalline Y1Ba2Cu3Ox (YBCO) were derived from the I-V characteristic curves obtained below the critical temperature, Tc. Jc were remeasured after the sample being irradiated with 3 MeV-electron at a dose of 5 × 1021 m-2. Jc in zero field as a function of temperature was found to decrease, but Jc in magnetic fields of 0.01, 0.05 and 1.0 T was increased. The reduction of Jc in zero field is attributed to weak links at the grain boundaries that had been degraded or produced by the irradiation, while the enhancement of Jc in magnetic field is discussed as due to the radiation-induced defects in the grains act as pinning centers for magnetic flux lines. The difference in the profile of Jc-T curves between low and high magnetic fields is discussed as due to the difference in the nature of magnetic flux penetration at those magnetic fields.

    Original languageEnglish
    Pages (from-to)109-112
    Number of pages4
    JournalSolid State Communications
    Volume86
    Issue number2
    DOIs
    Publication statusPublished - 1993

    Fingerprint

    Critical current density (superconductivity)
    Electron irradiation
    electron irradiation
    Superconducting materials
    critical current
    Magnetic fields
    current density
    magnetic fields
    Magnetic flux
    magnetic flux
    curves
    critical temperature
    Grain boundaries
    Temperature distribution
    temperature distribution
    penetration
    grain boundaries
    Irradiation
    Radiation
    dosage

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

    Cite this

    Effects of electron irradiation on the critical current density of Y1Ba2Cu3Ox superconductors. / Abdullah, M. H.; Shiraishi, K.

    In: Solid State Communications, Vol. 86, No. 2, 1993, p. 109-112.

    Research output: Contribution to journalArticle

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