Ca0.03 Cu La1.97 O4 Rial C, Moran E, Alario-Franco M, Amador U, Martinez J, Rodriguez-Carvajal J, Andersen N Physica C 297 (1998) 277-293 Effects of extra oxygen on the structure and superconductivity of La2-xCaxCuO4+y prepared by chemical oxidation _cod_database_code 1006178 _database_code_amcsd 0015087 5.3336 5.4000 13.1256 90 90 90 Bmab atom x y z occ La1 0 .0062 .3617 .985 Ca1 0 .0062 .3617 .015 Cu1 0 0 0 O1 .25 .25 .0075 1.01 O2 0 -.0368 .1827 .995