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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27967

    Title: Temperature dependence of magnetic flux drag torque for a single grain YBa2Cu3O7 superconductor
    Authors: 陳偉正;Chan, W. C.;Yang,Y. P.;Chiang, C. H.
    Contributors: 淡江大學物理學系
    Keywords: Critical Current Density;Flux Pinning and Creep;Superconducting Bearings
    Date: 2008-06-01
    Issue Date: 2010-08-10 09:46:23 (UTC+8)
    Publisher: 淡江大學
    Abstract: A modified close cycle helium gas cryogenic system was used to measure the flux drag torque acting on a free spinning disk magnet by a single grain YBCO superconductor. It was found that at low spinning speed ( less than 8 Hz ) and constant levitation height, the flux drag torque decreased with temperature which behavior is roughly similar to the temperature dependence of the reciprocal of critical current density for a single grain superconductor.
    Relation: 淡江理工學刊 = Tamkang Journal of Science and Engineering 11(2), pp.127-130
    DOI: 10.6180/jase.2008.11.2.03
    Appears in Collections:[物理學系暨研究所] 期刊論文

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