Non-resonant microwave absorption in the high temperature superconductor Bi2Sr2CaCu2O8+δ

F. J. Owens, Zafar Iqbal

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5 Scopus citations

Abstract

The magnetic field position of the peak of the derivative of the non-resonant microwave absorption in the high temperature superconductor Bi2Sr2CaCu2O8+δ is shown to depend on whether the applied magnetic field is increasing or decreasing. The magnitude of this hysteresis, which is due to flux trapping, differs from that observed in YBa2Cu3O6+x and for the present samples is independent of the maximum field applied. It does depend on whether the sample is cooled below Tc in a magnetic field or in zero field. The temperature dependence of the intensity of the absorption is shown to be consistent with the temperature dependence of the current in a Josephson junction assuming the presence of a superconducting gap obeying a mean field temperature dependence.

Original languageEnglish (US)
Pages (from-to)231-234
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume166
Issue number3-4
DOIs
StatePublished - Mar 15 1990

All Science Journal Classification (ASJC) codes

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

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