Ca0.12 Cu La1.88 O4.05 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 1006192 _database_code_amcsd 0015101 5.3313 5.3666 13.1531 90 90 90 Bmab atom x y z occ La1 0 .0024 .3608 .94 Ca1 0 .0024 .3608 .06 Cu1 0 0 0 O1 .25 .25 .0052 O2 0 -.0271 .1823 .920 O3 .039 .085 .184 .040 O4 .25 .25 .243 .025