Ba2 Cu2 Nd2 O11 Ti2 Gomez-Romero P, Palacin M, Rodriguez-Carvajal J Chemistry of Materials 6 (1994) 2118-2122 Crystal structure refinement of the layered copper-titanium perovskites Ln2 Ba2 Cu2 Ti2 O11 (Ln=La, Nd) from neutron powder diffraction data _cod_database_code 1006075 _database_code_amcsd 0012203 3.91275 3.91275 15.7614 90 90 90 P4/mmm atom x y z Nd1 .5 .5 0 Ba1 .5 .5 .2357 Nd2 .5 .5 .5 Cu1 0 0 .1084 Ti1 0 0 .3701 O1 0 0 .5 O2 .5 0 .3841 O3 0 0 .2554 O4 .5 0 .0974