Ba2 Ca0.27 Co0.3 Cu2.7 O7 Y0.73 Suard E, Caignaert V, Maignan A, Bouree F, Raveau B Physica C 210 (1993) 164-172 Influence of thermal treatment on Y1-xCaxBa2Cu3-xCoxO7. A neutron diffraction study _cod_database_code 1001588 _database_code_amcsd 0015049 3.8646 3.8646 11.7257 90 90 90 P4/mmm atom x y z occ Y1 .5 .5 .5 .73 Ca1 .5 .5 .5 .27 Ba1 .5 .5 .1903 Cu1 0 0 0 .7 Co1 0 0 0 .3 Cu2 0 0 .3600 O1 0 .5 .3762 O2 0 0 .1536 O3 .062 .5 0 .250