Magnetic behavior of the high Tc composite compound of Y1Ba2Cu3O7-δ in the superconducting phase

F. Zuo, Bruce R. Patton, T. W. Noh, S. I. Lee, Y. Song, J. P. Golben, X. D. Chen, S. Y. Lee, J. R. Gaines, J. C. Garland, A. J. Epstein

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3 Scopus citations


Detailed measurements of the magnetic properties in the superconducting state of a composite sample with approximately 35% Y1Ba2Cu3O7-δ and a Tc of 87K are compared with results on a corresponding single phase sample. The susceptibility is approximately linear in temperature below and near Tc indicating large magnetic field penetration near the transition. At low temperatures, a volume flux expulsion of 5% is found in lowest magnetic field, with Hc1 indicated to be 1.5kG. Magnetization loops are presented, showing hysteretic behavior even at 4.2K and 100G. At higher temperatures, the magnetization curves bear a striking resemblance to those for a large κ type II superconductor. The Curie susceptibility associated with spin in the non-superconducting phase remains unscreened below Tc in sharp contrast to the behavior of the rare earth 1-2-3 compounds, indicating that the magnetic flux percolates easily through the composite.

Original languageEnglish (US)
Pages (from-to)83-86
Number of pages4
JournalSolid State Communications
Issue number1
StatePublished - Oct 1987
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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