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INCREASE IN CRITICAL CURRENT DENSITY OF YTTRIUM-BARIUM-COPPER-OXIDE COMPOUNDS AT 77 K BY ADDITION OF FLUORINE.

Author(s) : SUMIYOSHI F., HAMADA T., KAWABATA S.

Type of article: Article

Summary

AN YTTRIUM-BARIUM-COPPER-OXIDE COMPOUND CONTAINING A SMALL QUANTITY OF ADDED FLUORINE WAS DEVELOPED WHICH EXHIBITED MAGNETIZATION CURVES AT 77 K VERY SIMILAR TO THOSE OF PRACTICAL SUPERCONDUCTORS USED AT 4.2 K SUCH AS NIOBIUM-TITANIUM AND NIOBIUM-TIN. WHEN FORMED IN BULK, THE COMPOUND IS MADE UP OF GRAINS WHICH ARE CLOSELY CONNECTED TO EACH OTHER AND HAS UNIFORMLY ARRANGED LAMINATED DOMAINS. THE CRITICAL CURRENT DENSITY, AS ESTIMATED FROM THE OBSERVED MAGNETIZATION CURVE AT 77 K, WAS ABOUT 5 TIMES GREATER THAN THAT OF PURE YTTRIUM-BARIUM-COPPER-OXIDE COMPOUNDS.

Details

  • Original title: INCREASE IN CRITICAL CURRENT DENSITY OF YTTRIUM-BARIUM-COPPER-OXIDE COMPOUNDS AT 77 K BY ADDITION OF FLUORINE.
  • Record ID : 1988-2169
  • Languages: English
  • Source: Cryogenics - vol. 28 - n. 1
  • Publication date: 1988

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