Ba Cu Fe O5 Y Caignaert V, Mirebeau I, Bouree F, Nguyen N, Ducouret A, Greneche J, Raveau B Journal of Solid State Chemistry 114 (1995) 24-35 Crystal and magnetic structure of Y Ba Cu Fe O5 _cod_database_code 1001640 _database_code_amcsd 0013833 3.8751 3.8751 7.6790 90 90 90 P4/mmm atom x y z occ Y1 0 0 .5 Ba1 0 0 0 Cu1 .5 .5 .2854 .5 Fe1 .5 .5 .2525 .5 O1 .5 .5 0 O2 .5 0 .3156