Levitation force measurement at different temperatures for YBCO superconductor

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27584

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題名:	Levitation force measurement at different temperatures for YBCO superconductor
作者:	陳偉正;Chan, Wai-ching
貢獻者:	淡江大學物理學系
日期:	2003-05
上傳時間:	2009-12-31 10:27:23 (UTC+8)
出版者:	Springer
摘要:	Magnetic levitation force measurements for high Tc superconductors usually perform with the use of liquid nitrogen. It is both convenient and cheap. However, the temperature of the sample cannot be changed (77 K) and there is problem of frost. So, it is necessary to build another type of system to measure the levitation force of high Tc superconductor under different temperatures. In this study, we have transformed a close cycle cryogenic system (20–300 K), together with the use of an electronic balance, to measure the hysteretic curves of high Tc YBCO superconductor under different temperature. We also have used SQUID to measure the corresponding magnetization curves for our sample directly. From these results, we have found that the critical current density of our superconducting sample obtained from both measurements agree with each other as expected.
關聯:	Journal of low temperature physics 131(3-4), pp.743-746
DOI:	10.1023/A:1022925419581
顯示於類別:	[物理學系暨研究所] 期刊論文

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