Higher-harmonic Susceptibilities of Bi-ceramic Superconductors

Hiromasa Mazaki, Hirosi Yasuoka, Nobuhisa Koide, Masato Kakihana, Masahiro Yoshimura

Research output: Contribution to journalArticle

Abstract

For the study of magnetic properties of sintered high-Tc ceramic superconductors, we measured harmonic ac susceptibilities Xn = Xn'-iXn” of Bi1.6Pb0.4Sr2Ca2Cu3Oy immersed inan external field H(t) = H'dc + Haccos(Öt), where Hdc (0) is a dc bias field and Hac (> 0) is an ac field amplitude. Measurements of Xn were carried out for n = 1, 2, 3, 5, 7, 9 and OHac = 0.01-0.1 mT. The fundamental frequency used was 132 Hz. The observed results wereanalyzed within the construct of the Kim-Anderson model for critical-current density. Similar to our previous work for an YBa2Cu3Oy sample with Fe impurities, generation of the higherharmonic susceptibilities seems to arise from the supercurrent according to the same model. Details of the measurement and the analysis are presented.

Original languageEnglish
Pages (from-to)756-762
Number of pages7
Journaljournal of the japan society of powder and powder metallurgy
Volume39
Issue number9
DOIs
Publication statusPublished - 1992 Jun
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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