Magnetization hysteresis in high fields for quench-melt-growth processed Y1Ba2Cu3O7

K. Watanabe, S. Awaji, G. Kido, N. Kobayashi, Y. Muto, K. Kimura, K. Sawano

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Abstract

Magnetization measurements for quench and melt growth processed Y 1Ba2Cu3O7 bulks were performed in high fields up to 23 T at 4.2 K. The values of JcM derived from the magnetization hysteresis for B//c-axis were comparable to the intragrain current densities in fields up to 10 T as expected, and abruptly decreased in higher fields. The values of JcM for B perpendicular to c-axis were a few orders of magnitude smaller than the intragrain current densities. These results indicate that the size of subdomain boundaries involving weak-links presumably decreases with applying magnetic fields.

Original languageEnglish
Article number064
Pages (from-to)S288-S291
JournalSuperconductor Science and Technology
Volume5
Issue number1S
DOIs
Publication statusPublished - 1992

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