Ba4 Cu7 O14.3 Y2 Bordet P, Chaillout C, Chenavas J, Hodeau J, Marezio M, Karpinski J, Kaldis E Nature (London) 334 (1988) 596-598 Structure Determination of the new high-temperature Superconductor Y Ba Cu O (2/4/7/14.30) _cod_database_code 1008369 _database_code_amcsd 0016279 3.851 3.869 50.29 90 90 90 Ammm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ba1 .5 .5 .04310 .0141 .0147 .0094 0 0 0 Ba2 .5 .5 .18797 .0059 .0063 .0070 0 0 0 Y1 .5 .5 .11545 .0003 -.0017 .0009 0 0 0 Cu1 0 0 0 .042 .047 .020 0 0 0 Cu2 0 0 .08293 .0033 .0053 .0084 0 0 0 Cu3 0 0 .14831 .0027 .0045 .0071 0 0 0 Cu4 0 0 .23012 .7 .011 .0048 .0015 0 0 0 Cu5 0 0 .23012 .3 .011 .0048 .0015 0 0 0 O1 0 0 .0353 .010 .09 .10 0 0 0 O2 .5 0 .0871 O3 0 .5 .0865 O4 .5 0 .1430 O5 0 .5 .1432 O6 0 0 .1937 O7 0 .5 .2328 O8 0 .5 0 .10 O9 .5 0 0 .20