Ba2 Ca0.09 Cu2.91 Fe0.09 O7.01 Y0.91 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 1001490 _database_code_amcsd 0015029 CELL PARAMETERS: 3.8602 3.8602 11.6646 90.000 90.000 90.000 SPACE GROUP: P4/mmm X-RAY WAVELENGTH: 1.541838 Cell Volume: 173.816 Density (g/cm3): 6.316 MAX. ABS. INTENSITY / VOLUME**2: 161.4339344 RIR: 8.322 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.19 1.87 5.8323 0 0 2 2 22.87 2.76 3.8882 0 0 3 2 23.04 5.29 3.8602 1 0 0 4 27.71 9.00 3.2190 1 0 2 8 32.69 100.00 2.7394 1 0 3 8 32.81 51.96 2.7296 1 1 0 4 36.34 2.41 2.4722 1 1 2 8 38.59 6.55 2.3329 0 0 5 2 38.70 5.82 2.3268 1 0 4 8 40.37 10.76 2.2340 1 1 3 8 46.72 7.95 1.9441 0 0 6 2 47.08 29.52 1.9301 2 0 0 4 51.53 3.81 1.7734 1 1 5 8 55.11 1.09 1.6664 0 0 7 2 55.51 2.21 1.6553 2 1 2 16 58.27 13.42 1.5835 1 1 6 8 58.50 31.43 1.5778 2 1 3 16 62.45 4.79 1.4871 2 0 5 8 62.52 2.19 1.4855 2 1 4 16 65.64 1.58 1.4223 1 1 7 8 68.50 8.03 1.3697 2 0 6 8 68.79 7.36 1.3648 2 2 0 4 68.83 3.78 1.3640 1 0 8 8 75.35 1.41 1.2613 2 0 7 8 77.72 1.94 1.2287 1 0 9 8 78.26 5.63 1.2216 3 0 3 8 78.33 6.01 1.2207 3 1 0 8 81.75 1.80 1.1780 2 2 5 8 82.89 1.39 1.1647 3 1 3 16 87.29 3.54 1.1170 2 2 6 8 87.33 1.69 1.1166 1 0 10 8 87.59 3.42 1.1139 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.