Pulsed field magnetization of large-grain Gd-Ba-Cu-O bulk superconductor

Hirofumi Fukai, Hideyuki Yamada, Naomichi Sakai, Masato Murakami

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Abstract

We measured the field distribution and the variation of temperature in a large-grain Gd-Ba-Cu-O bulk superconductor during pulse field magnetization. When the applied field was below 3.1 T, the temperature rise due to flux motion was small because the magnetic flux penetrated only the surface thin layer. The trapped field increased with increasing field, although the sample temperature was raised and the trapped field reached 1.6 T for the applied pulse field of 3.1 T. However, when the applied field exceeded 3.1 T, the trapped field suddenly decreased due to an excessive temperature rise in the sample. Thus there is an optimum peak field for the pulse field magnetization process.

Original languageEnglish
Pages (from-to)585-588
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct

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Keywords

  • Bulk superconductor
  • Gd-Ba-Cu-O
  • Pulsed field magnetization

ASJC Scopus subject areas

  • Condensed Matter Physics

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