Ba2 Cu2 Nd O6.96 Tl0.96 Michel C, Suard E, Caignaert V, Martin C, Maignan A, Hervieu M, Raveau B Physica C 178 (1991) 29-36 Neutron diffraction structure determination of the "1212"-series TlBa2Ca1-xNdxCu2O7-d _cod_database_code 1001486 _database_code_amcsd 0015024 3.91021 3.91021 12.4916 90 90 90 P4/mmm atom x y z occ Tl1 .0717 0 0 .24 Ba1 .5 .5 .2055 Nd1 .5 .5 .5 Cu1 0 0 .3633 O1 0 .5 .3785 O2 0 0 .1662 O3 .6199 .5 0 .24