Temperature dependence of magnetic flux drag torque for a single grain YBa2Cu3O7 superconductor

機構典藏 > College of Sciences > Graduate Institute & Department of Physics > Journal Article > Item 987654321/27967

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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:	[Graduate Institute & Department of Physics] Journal Article

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