Critical current in polycrystalline Bi-Ca-Sr-Cu-O films

Hong-Chang Yang, J. C. Jao, H. H. Sung, Herng-Er Horng, H. C. Chen

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)


    Thin films of Bi-Ca-Sr-Cu-O were prepared by rf magnetron sputtering a sintered Bi2CaSr2Cu2O8-y target. The films were deposited on a MgO(100) substrate. The data reported here have a Tc (50%) of about 86 K and a transition width Tc=9081 K (9010%). Temperature-dependent I-V characteristics examined over wide ranges reveal that the critical current is proportional to (1-T/Tc)3/2 near Tc. The implication of the (3/2 power dependence will be discussed.

    Original languageEnglish
    Pages (from-to)9628-9630
    Number of pages3
    JournalPhysical Review B
    Issue number13
    Publication statusPublished - 1989 Jan 1

    ASJC Scopus subject areas

    • Condensed Matter Physics

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