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PROTON-INDUCED REDUCTION OF SURFACE RESISTANCE, CRITICAL CURRENT DENSITY AND CRITICAL TEMPERATURE IN YBCO(7-) THIN FILMS.

Author(s) : CHRISEY D. B.

Type of article: Article

Summary

THE AUTHORS HAVE EXPLORED THE EFFECT OF 2 MEGAELECTRONVOLTS IRRADIATION ON THE SUPERCONDUCTING TRANSPORT PROPERTIES OF THIN FILMS OF YBCO(7-). THE INDUCTIVELY MEASURED CRITICAL TEMPERATURE CHANGED SLOWLY AND UNIFORMLY (ABOUT 2 K PER 1.E16/CM2 ) FOR FLUENCES LESS THAN ABOUT 3.E THE CRITICAL CURRENT DENSITY MEASURED AT 77 AND 4.2 K CHANGED ROUGHLY LINEARLY WITH FLUENCE. THE RESIDUAL SURFACE RESISTANCE WAS NOT AFFECTED FOR FLUENCES UP TO 5.E16/CM2. THE AUTHORS HAVE INTERPRETED THE SUDDEN AND REPRODUCIBLE REDUCTION IN THE MICROWAVE CRITICALTEMPERATURE TRANSITION AS A SENSITIVE INDICATOR OF DISRUPTION IN THE COPPER-OXYGEN CHAIN SUBLATTICE AND COMPARED THE PROTON-INDUCED CHANGE TO THAT OBSERVED IN OXYGEN GETTERING STUDIES OF BULK MATERIALS.

Details

  • Original title: PROTON-INDUCED REDUCTION OF SURFACE RESISTANCE, CRITICAL CURRENT DENSITY AND CRITICAL TEMPERATURE IN YBCO(7-) THIN FILMS.
  • Record ID : 1992-0968
  • Languages: English
  • Source: J. Supercond. - vol. 4 - n. 1
  • Publication date: 1991/02
  • Document available for consultation in the library of the IIR headquarters only.

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