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 1006173 _database_code_amcsd 0015082 5.3513 5.3907 13.1603 90 90 90 Bmab atom x y z occ La1 0 .0049 .36131 .985 Ca1 0 .0049 .36131 .015 Cu1 0 0 0 O1 .25 .25 .0071 .995 O2 0 -.0319 .1833 1.005