New superconducting cuprate perovskites

D. W. Murphy, S. Sunshine, R. B. Van Dover, R. J. Cava, B. Batlogg, S. M. Zahurak, L. F. Schneemeyer

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Ten new superconducting cuprate perovskites with Tcs above 77 K are reported. The highest Tc of the new group, and for any superconductor, is observed in Ba2Eu0.9Y0.1Cu3Ox which has a resistive midpoint of 94.5 K with a width of 0.7 K. Miessner effect and ac susceptibility measurements indicate bulk superconductivity in these materials. Each of these cuprates has a two-to-one ratio of divalent to trivalent ion on the A site of the perovskite-type structure.

Original languageEnglish (US)
Pages (from-to)1888-1890
Number of pages3
JournalPhysical review letters
Issue number18
StatePublished - Jan 1 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Murphy, D. W., Sunshine, S., Van Dover, R. B., Cava, R. J., Batlogg, B., Zahurak, S. M., & Schneemeyer, L. F. (1987). New superconducting cuprate perovskites. Physical review letters, 58(18), 1888-1890.