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EVIDENCE FOR TWO SUPERCONDUCTING COMPONENTS IN OXYGEN-ANNEALED SINGLE-PHASE YTTRIUM-BARIUM-COPPER-OXYGEN.

Author(s) : GOLDFARB R. B.

Type of article: Article

Summary

THE COMPLEX SUSCEPTIBILITY OF A SINTERED YTTRIUM-BARIUM-COPPER-OXYGEN SUPERCONDUCTOR IS STRONGLY DEPENDENT ON ALTERNATING CURRENT FIELD AMPLITUDE FOR WHICH SMALL VALUES MUST BE USED FOR THE REAL PART OF SUSCEPTIBILITY TO REACH A VALUE CORRESPONDING TO BULK DIAMAGNETISM JUST BELOW THE CRITICAL TEMPERATURE. TWO MODELS EXPLAIN THE SUSCEPTIBILITY DATA. IN THE GRAIN MODEL, THE GOOD COMPONENT CONSISTS OF SUPERCONDUCTING GRAINS AND THE BAD COMPONENT IS EITHER INTERGRANULAR MATERIAL, UNFAVOURABLY ORIENTATED ANISOTROPIC GRAINS, OR OXYGEN-DEPLETED GRAIN BOUNDARIES.

Details

  • Original title: EVIDENCE FOR TWO SUPERCONDUCTING COMPONENTS IN OXYGEN-ANNEALED SINGLE-PHASE YTTRIUM-BARIUM-COPPER-OXYGEN.
  • Record ID : 1988-1316
  • Languages: English
  • Source: Cryogenics - vol. 27 - n. 9
  • Publication date: 1987

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