Bi Cu2 O8 Pb Sr2 Y Retoux R, Caignaert V, Provost J, Michel C, Hervieu M, Raveau B Journal of Solid State Chemistry 79 (1989) 157-168 Superconducting properties and Structural Study of Bi2-xPbxSr2Ca1-xYxCu2O8 (0< x< 1) _cod_database_code 1001409 _database_code_amcsd 0013649 5.385 5.424 30.316 90 90 90 Fmmm atom x y z occ Bi1 0 0 .2018 .5 Pb1 0 0 .2018 .5 Sr1 0 0 .6147 Y1 0 0 .5 Cu1 0 0 .0554 O1 .25 .25 .049 O2 0 0 .686 O3 0 0 .133