Cu2 O7 Sr2 Tl Y Huve M, Martin C, Michel C, Maignan A, Hervieu M, Raveau B Journal of Physics and Chemistry of Solids 54 (1993) 145-152 Influence of the size of alkaline earth cations on the structural distortion and transport properties of the semiconducting 1212 - type cuprates TlBa2-xSrxLnCu2O7 _cod_database_code 1001526 _database_code_amcsd 0013241 3.8157 3.8157 11.9963 90 90 90 P4/mmm atom x y z occ Tl1 .060 0 0 .25 Sr1 .5 .5 .2101 Y1 .5 .5 .5 Cu1 0 0 .3638 O1 0 .5 .378 O2 0 0 .173 O3 .5 .5 0