Indication of superconductivity at 35 K in graphite-sulfur composites.

نویسندگان

  • R R da Silva
  • J H Torres
  • Y Kopelevich
چکیده

We report magnetization measurements performed on graphite-sulfur composites which demonstrate a clear superconducting behavior below the critical temperature T(c0) = 35 K. The Meissner-Ochsenfeld effect, screening supercurrents, and magnetization hysteresis loops characteristic of type-II superconductors were measured. The results indicate that the superconductivity occurs in a small sample fraction, possibly related to the sample surface.

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عنوان ژورنال:
  • Physical review letters

دوره 87 14  شماره 

صفحات  -

تاریخ انتشار 2001