Au Ba2 Ca0.3 Cu2 O7 Y0.7 Bordet P, LeFloch S, Chaillout C, Duc F, Gorius M, Perroux M, Capponi J, Toulemonde P, Tholence J Physica C 276 (1997) 237-244 Au Ba2 (Y(1-x) Ca(x)) Cu2 O7: a new superconducting gold cuprate with Tc above 80 K _cod_database_code 1008814 _database_code_amcsd 0016684 3.8298 3.8420 12.111 90 90 90 Pmmm atom x y z occ Au1 0 0 0 Ba1 .5 .5 .199 Y1 .5 .5 .5 .7 Ca1 .5 .5 .5 .3 Cu1 0 0 .363 O1 0 0 .153 O2 .5 0 .39 O3 0 .5 .38 O4 .19 .5 0 .5