Surface Resistance of Bi2Sr2Ca1Cu2Oy Strip Lines Made from Green Sheet

Shigetoshi Ohshima, Katsuro Okuyama, Kunio Sawaya, Keisuke Noguchi

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1 Citation (Scopus)

Abstract

The surface resistance, Rs, of Bi2Sr2Ca1Cu2Oy (2212) strip lines prepared by the doctor blade method was measured by the strip-line resonance method. The highest TcR=0 of these strip lines measured by the conventional dc method was about 80 K. The Rs values were very sensitive to the surface and grain morphology of the films. It was verified through scanning electron microscope (SEM) observation and X-ray analysis that the Rs values of strip lines consisting of crystal grains whose c axes were oriented normal to substrate were smaller than those of strip lines with nonoriented grains. The values were about 6-22 mΩ at 70 K in the frequency range of 0.6-2.5 GHz. The Rs values were proportional to f1.0, in contradiction to the f2 dependence expected from the two-fluid model.

Original languageEnglish
Pages (from-to)L539-L542
JournalJapanese journal of applied physics
Volume31
Issue number5
DOIs
Publication statusPublished - 1992 May

Keywords

  • BSCCO
  • Doctor blade method
  • Oxide superconductor
  • Surface resistance

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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