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DIAMAGNETIC PROPERTIES AND CRITICAL CURRENTS OF BSCCO SUPERCONDUCTING CERAMICS CONTAINING LEAD IN SUBSTITUTION.

[In Russian. / En russe.]

Author(s) : DOLGIN A. M.

Type of article: Article

Summary

THE CERAMICS ARE FOUND TO DISPLAY A BEHAVIOUR WHICH IS TYPICAL OF A GRANULAR SUPERCONDUCTOR WITH JOSEPHSON COUPLINGS AT GRAIN BOUNDARIES. THE HYSTERESIS IN THE FIELD DEPENDENCES OF SUSCEPTIBILITY AND CRITICAL CURRENT IS OBSERVED. EMPIRICAL EQUATIONS FOR TEMPERATURE AND FIELD DEPENDENCES OF CURRENT DENSITY ARE DERIVED. IT IS SHOWN THAT LEAD WHICH SUBSTITUTES BISMUTH IN THE SYSTEM IN QUESTION AFFECTS APPRECIABLY THE PARAMETERS OF GRAIN CONTACTS BUT PRODUCES NO CHANGES IN THE PROPERTIES OF BULK SUPERCONDUCTING PHASE 2223.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1992-0982
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 17 - n. 4
  • Publication date: 1991/04
  • Document available for consultation in the library of the IIR headquarters only.

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