AC susceptibility study of BiPbSrCuO(2223) superconductors


Gencer A., Nezir S., Altunbas M., Aydinuraz A.

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, vol.9, no.6, pp.467-473, 1996 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 6
  • Publication Date: 1996
  • Doi Number: 10.1088/0953-2048/9/6/005
  • Title of Journal : SUPERCONDUCTOR SCIENCE & TECHNOLOGY
  • Page Numbers: pp.467-473

Abstract

The magnetic response of Bi-based superconductors of nominal composition Bi1.8Pb0.2Sr2Ca3Cu4O12 against low AC field amplitudes is studied in terms of fundamental and third harmonic AC susceptibilities to investigate various physical parameters. Optimum conditions of a wet preparation technique have been determined. Both transport and inductive critical current densities have increased considerably on samples subjected to a single intermediate grinding. The magnetic data accompanied by XRD measurements support the theory that the minor superconducting phase 2212 is mostly screened by a dominating matrix of 2223 high-T-c phase.