Ba2 Co0.38 Cu2.62 O6.91 Y Renevier H, Hodeau J, Marezio M, Santoro A Physica C 220 (1994) 143-159 Electron- and powder neutron-diffraction studies of Y Ba2 (Cu1-y Coy)3 O6+x with 0.05< y< 0.33 _cod_database_code 1008669 _database_code_amcsd 0016555 3.8772 3.8772 11.7352 90 90 90 P4/mmm atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ba1 .5 .5 .1935 Y1 .5 .5 .5 Cu1 0 0 0 .65 Co1 0 0 0 .35 Cu2 0 0 .3614 .985 Co2 0 0 .3614 .015 O1 0 0 .1504 O2 0 .5 .3793 O3 0 .5 0 .455 15.2 4.5 2.8 0 0 0