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    Title: Magnetization Studies of Near-Room-Temperature Flux-Trapping Phenomenon in Cu-O Based Materials
    Authors: M. S. M. Minhaj, J. Obien, Ling, D. C.;Chen, J. T.;Wenger, L. E.
    Contributors: 淡江大學物理學系
    Date: 1994-08
    Issue Date: 2013-01-15 18:45:39 (UTC+8)
    Publisher: New York: Kluwer Academic Publishers-Plenum Publishers
    Abstract: DC magnetization studies on a variety of ceramic and crystalline YBaCuO samples indicate a superconducting-like flux-trappinig behavior occurring at similar temperatures as zero-resistance transition temperatures observed near room temperature. The flux-trapping behavior is exemplified by diamagnetic-like deviations from a positive magnetic background in the zero-field-cooled magnetization, by a divergence between the zero-field-cooled and field-cooled magnetization data, or by a positive Meissner effect in the field-cooled magnetization. These behaviors are consistent with a high-T c (>250 K) superconducting phase in an inhomogeneous superconductor where the superconducting regions exist as defect structures or surface coatings and whose volume fraction is less than a few percent.
    Relation: Journal of Superconductivity 7(4), pp.715-718
    DOI: 10.1007/BF00721653
    Appears in Collections:[物理學系暨研究所] 期刊論文

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