Ba1.6 Cu2 La2.4 O9 Tl Martin C, Maignan A, Huve M, Hervieu M, Michel C, Raveau B Physica C 179 (1991) 1-8 TlBa2-xLa2+xCu2O9+d: a new 42K superconductor, intergrowth of "1201" and "0201" structures _cod_database_code 1001483 _database_code_amcsd 0015025 3.8110 3.8110 31.556 90 90 90 I4/mmm atom x y z occ Tl1 0 0 0 Ba1 .5 .5 .0850 .8 La1 .5 .5 .0850 .2 La2 .5 .5 .2044 Cu1 0 0 .1466 O1 .5 .5 0 O2 0 0 .063 O3 .5 0 .1458 O4 0 0 .218