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Superconductivity at 94 K in mercury-barium(2)-copper-oxygen(4+).

Author(s) : PUTILIN S. N., ANTIPOV E. V., CHMAISSEM O., MAREZIO M.

Type of article: Article

Summary

The highest transition temperatures so far have been found for thallium-bearing compounds. The authors report the synthesis of the related mercury-bearing compound (mercury-1201), with only one copper-oxide layer per unit cell, and show that it is superconducting below 94 K. Its structure is similar to that of thallium-1201, but its transition temperature is considerably higher. The availability of a material with high-critical temperature but only a single metal oxide (mercury-oxide) layer may be important for technological applications, as it seems that a smaller spacing between copper-oxide planes leads to better superconducting properties in a magnetic field.

Details

  • Original title: Superconductivity at 94 K in mercury-barium(2)-copper-oxygen(4+).
  • Record ID : 1994-2088
  • Languages: English
  • Source: Nature - vol. 362 - n. 6417
  • Publication date: 1993/03/18
  • Document available for consultation in the library of the IIR headquarters only.

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