Citation: Seshadri, R; Maignan, A; Hervieu, M; Martin, C; Raveau, B; Rao, C N R (1996). Substitution of chromium for univalent copper in superconducting Pb2 Sr2 (Ca, Y) Cu3 O8+d. Journal of Solid State Chemistry, 127, pp. 64-71.
Formula: Ca0.2 Cr0.15 Cu2.85 O8 Pb1.75 Sr2 Y
Chemical name:Lead calcium strontium yttrium copper chromium oxide(1.75/0.2/2/1/2.85/0.15/8)