Effect of external magnetic field on the critical current in single and bifilar Bi-2223 tapes

N. Shaked, A. Friedman, M. Sinvani, I. A. Al-Omari, Y. Wolfus, A. Shaulov, Y. Yeshurun

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We report on measurements of the critical current in a single and bifilar multifilamentary Bi-2223/Ag tapes, at 77 K, under various DC magnetic fields applied perpendicular to the tape plane. At low applied fields the bifilar tape exhibits higher critical current, as expected. However, above ∼50 G the situation is reversed, i.e., the critical current of the single tape is higher. These results are attributed to the different spatial distribution of the self-field in these two configurations. Our data and analysis imply that, in terms of critical current, the bifilar configuration has over advantage over the single tape configuration only in a limited range of external magnetic fields.

Original languageEnglish
Pages (from-to)237-241
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume354
Issue number1-4
DOIs
Publication statusPublished - May 2001

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Keywords

  • Bi-2223 tape
  • Bifilar sample
  • Critical current
  • Magnetic field

ASJC Scopus subject areas

  • Condensed Matter Physics

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