Comparison between the magnetic and transport critical current densities in high critical current density melt-textured yttrium barium copper-oxide

L. Gao, R. L. Meng, Y. Y. Xue, P. H. Hor, C. W. Chu

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)

摘要

Using our recently developed pulsed critical current density (J c) measuring system, the Jc of the high Jc melt-textured YBa2Cu3O7-δ (Y123) bulk samples has been determined. I-V curves with a voltage resolution of 0.5 μV were obtained, and transport Jc's along the a-b plane (J c∥ a-b) as high as 7.2×1 04 A/cm2 were extracted. These results are comparable to the values obtained magnetically. On the other hand, transport Jc along the c axis (Jc∥c) were found to be two orders of magnitude smaller, even though the magnetic Jc∥c is only about five times smaller than Jc∥a-b. We suggest that for the high-temperature superconducting materials which are highly anisotropic, caution should be taken when using the nontransport magnetic methods to determine Jc.

原文English
頁(從 - 到)92-94
頁數3
期刊Applied Physics Letters
58
發行號1
DOIs
出版狀態Published - 1991

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

指紋

深入研究「Comparison between the magnetic and transport critical current densities in high critical current density melt-textured yttrium barium copper-oxide」主題。共同形成了獨特的指紋。

引用此