Ba2 Ce0.5 Cu2 Eu1.5 O9 Tl Liu R, Hervieu M, Michel C, Maignan A, Martin C, Raveau B, Edwards P Physica C 197 (1992) 131-135 TlBa2(Eu,Ce)2Cu2O9+d, a new member of the double fluorite-type cuprate family. Structure and possible induced superconductivity by oxygen high-pressure annealing _cod_database_code 1001540 _database_code_amcsd 0015037 3.8784 3.8784 30.415 90 90 90 I4/mmm atom x y z occ Tl1 .082 0 0 .25 Ba1 .5 .5 .0872 Eu1 .5 .5 .2087 .75 Ce1 .5 .5 .2087 .25 Cu1 0 0 .1520 O1 0 .5 .1554 O2 0 0 .0831 O3 .5 .5 0 O4 0 .5 .25