Magnetization Studies of Near-Room-Temperature Flux-Trapping Phenomenon in Cu-O Based Materials

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题名:	Magnetization Studies of Near-Room-Temperature Flux-Trapping Phenomenon in Cu-O Based Materials
作者:	M. S. M. Minhaj, J. Obien, Ling, D. C.;Chen, J. T.;Wenger, L. E.
贡献者:	淡江大學物理學系
日期:	1994-08
上传时间:	2013-01-15 18:45:39 (UTC+8)
出版者:	New York: Kluwer Academic Publishers-Plenum Publishers
摘要:	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.
關聯:	Journal of Superconductivity 7(4), pp.715-718
DOI:	10.1007/BF00721653
显示于类别:	[物理學系暨研究所] 期刊論文

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