Complex Susceptibilities of Co-Doped YBa2Cu3O7-d Synthesized by the Polymerized Complex Method

Hiromasa Mazaki, Hiroshi Yasuoka, Masato Kakihana, Masahiro Yoshimura

    Research output: Contribution to journalArticlepeer-review


    We studied the ac-magnetic response of Co-doped YBa2Cu3O7-d oxide superconductors, YBa2Cu3-xCoxO7-d (x = 0-0.5), in terms of complex susceptibility χ = χ′ - iχ″. The samples were synthesized by the polymerized complex method. We found the onset temperature decreased with increasing x, and for x ≥ 0.4, no superconducting transition was observed down to 5 K. The transition width ΔT(10-90%) for the sample of x = 0.05 is 1.9 K, which is much better than that of the specimens prepared by the ordinary treatment. The transition width was also found to increase as x increases. Details of the experiment are presented together with some discussion of the coupling phase involved.

    Original languageEnglish
    Pages (from-to)1096-1100
    Number of pages5
    Journaljournal of the japan society of powder and powder metallurgy
    Issue number11
    Publication statusPublished - 1993

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Industrial and Manufacturing Engineering
    • Metals and Alloys
    • Materials Chemistry


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