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    題名: Temperature dependence of magnetic flux drag torque for a single grain YBa2Cu3O7 superconductor
    作者: 陳偉正;Chan, W. C.;Yang,Y. P.;Chiang, C. H.
    貢獻者: 淡江大學物理學系
    關鍵詞: Critical Current Density;Flux Pinning and Creep;Superconducting Bearings
    日期: 2008-06-01
    上傳時間: 2010-08-10 09:46:23 (UTC+8)
    出版者: 淡江大學
    摘要: 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.
    關聯: 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
    顯示於類別:[物理學系暨研究所] 期刊論文


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