AC susceptibility measurement for Nd-Ba-Cu-O superconductor

Y. Akamatsu, K. Waki, K. Inoue, M. Murakami, T. Takizawa

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Abstract

Nd-Ba-Cu-O sample fabricated by the oxygen-controlled-melt-growth method exhibits large Jc values in a high field region and also shows a secondary peak effect. In the present study, the Nd-Ba-Cu-O sample was characterized by using the flux profile technique, in which the χ′ signal is plotted against the amplitude of AC field. Jc values determined with the flux profile technique also showed a clear secondary peak effect. In addition, such Jc values were higher than those measured with DC susceptibility, presumably due to a difference in the electric field to determine Jc.

Original languageEnglish
Pages (from-to)541-544
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug 1

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Keywords

  • AC susceptibility
  • Flux profile
  • Peak effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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