New Superconducting Cuprate Perovskites
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.
MSU Digital Commons Citation
Murphy, Donald W.; Sunshine, Steven A.; Van Dover, Robert B.; Cava, Robert J.; Batlogg, Bertram; Zahurak, S. M.; and Schneemeyer, Lynn, "New Superconducting Cuprate Perovskites" (1987). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 299.
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.