Superconductivity in Pr2Ba4Cu7O15-δ with metallic double chains

  title={Superconductivity in Pr2Ba4Cu7O15-δ with metallic double chains},
  author={Maori Matsukawa and Yuh Yamada and et al},
  • Maori Matsukawa, Yuh Yamada, et al
  • Published 2004
  • Physics
  • Abstract We report superconductivity with T c, onset  = ∼10 K in polycrystalline samples of Pr 2 Ba 4 Cu 7 O 15 −  δ possessing metallic double chains. A reduction treatment on as-sintered samples causes not only the enhanced metallic conduction but also the appearance of superconductivity, in strongly contrast with the oxygen removal effect of superconducting Y 2 Ba 4 Cu 7 O 15− δ . 


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