Ba2 Ca0.24 Cu2.76 Fe0.24 O7.04 Y0.76 Suard E, Caignaert V, Maignan A, Raveau B Physica C 182 (1991) 219-227 The important role of pyramidal copper layers of the 123-structure in superconductivity. The oxides Ba2Y1-xCaxCu3-xFexO7 and Ba2Y1-xCaxCu3-xFexO6 _cod_database_code 1001493 _database_code_amcsd 0015032 CELL PARAMETERS: 3.8637 3.8637 11.6899 90.000 90.000 90.000 SPACE GROUP: P4/mmm X-RAY WAVELENGTH: 1.541838 Cell Volume: 174.509 Density (g/cm3): 6.215 MAX. ABS. INTENSITY / VOLUME**2: 149.7017205 RIR: 7.843 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.16 3.03 5.8450 0 0 2 2 22.82 2.34 3.8966 0 0 3 2 23.02 5.07 3.8637 1 0 0 4 27.68 12.95 3.2232 1 0 2 8 32.64 100.00 2.7436 1 0 3 8 32.78 53.74 2.7320 1 1 0 4 36.30 3.29 2.4750 1 1 2 8 38.51 8.07 2.3380 0 0 5 2 38.63 8.22 2.3308 1 0 4 8 40.32 10.70 2.2370 1 1 3 8 46.62 7.18 1.9483 0 0 6 2 47.04 30.89 1.9318 2 0 0 4 51.44 5.17 1.7763 1 1 5 8 54.98 1.49 1.6700 0 0 7 2 55.45 3.16 1.6570 2 1 2 16 58.16 11.69 1.5863 1 1 6 8 58.43 31.39 1.5796 2 1 3 16 60.39 1.23 1.5329 1 0 7 8 62.35 5.96 1.4892 2 0 5 8 62.44 3.09 1.4874 2 1 4 16 65.51 2.22 1.4249 1 1 7 8 68.38 7.21 1.3718 2 0 6 8 68.67 4.63 1.3668 1 0 8 8 68.71 7.70 1.3660 2 2 0 4 75.21 1.94 1.2634 2 0 7 8 77.54 1.19 1.2312 1 0 9 8 78.16 5.62 1.2228 3 0 3 8 78.24 6.22 1.2218 3 1 0 8 81.63 2.24 1.1795 2 2 5 8 82.79 1.36 1.1658 3 1 3 16 87.10 2.13 1.1189 1 0 10 8 87.14 3.16 1.1185 2 2 6 8 87.41 4.17 1.1158 2 1 8 16 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.