PARAMAGNETIC MEISSNER EFFECTS IN MELT-TEXTURED Y0.99Nd0.01Ba2Cu3O7-y SUPERCONDUCTOR
来源期刊：Acta Metallurgica Sinica2002年第3期
论文作者：Y.Z.Wang Y.T.Xing G.W.Qiao
Key words：YBCO superconductor; paramagnetic Meissner effect (PME);
Abstract: The paramagnetic Meissner effect (PME) was observed on the field-cooled M-T curvesof melt-textured Y0.99Nd0.01Ba2Cu3O7-y in applied magnetic fields from 1kOe toJ0kOe. In the magnetic field below 1kOe, the sample undergoes the typical transi-tion from the normal state to the superconducting state when it was cooled down. Theapplied magnetic fields in which the PME occurs, are very high compared with thefields reported in literatures. We propose that the occurrence of the PME may be dueto a phase transition of flux vortices in the superconductors.
Y.Z.Wang1，Y.T.Xing1，G.W.Qiao1
(1.Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016, China)
Abstract:The paramagnetic Meissner effect (PME) was observed on the field-cooled M-T curvesof melt-textured Y0.99Nd0.01Ba2Cu3O7-y in applied magnetic fields from 1kOe toJ0kOe. In the magnetic field below 1kOe, the sample undergoes the typical transi-tion from the normal state to the superconducting state when it was cooled down. Theapplied magnetic fields in which the PME occurs, are very high compared with thefields reported in literatures. We propose that the occurrence of the PME may be dueto a phase transition of flux vortices in the superconductors.
Key words:YBCO superconductor; paramagnetic Meissner effect (PME);
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