Ba4 Ca0.7 Cu5 O14 Y1.3 Domenges B, Boullay P, Hervieu M, Raveau B Journal of Solid State Chemistry 108 (1994) 219-229 The substitution of CO3 groups for copper in Y1-xCaxBa2Cu3O7: HREM study _cod_database_code 1001615 _database_code_amcsd 0013793 7.7704 3.8876 22.98119 90 90 90 Bm2m atom x y z occ Y1 .25 .5 .75 .65 Ca1 .25 .5 .75 .35 Ba1 .2414 .5 .9066 C1 .5 0 0 Cu1 0 0 0 Cu2 .5 0 .8190 Cu3 0 0 .8190 O1 0 0 .915 O2 .44 0 .944 .5 O3 .25 0 .815 O4 0 .5 .811 O5 .5 .5 .811 O6 0 .5 0 O7 .67 0 0 .5