Lueshite Hewat A W Ferroelectrics 7 (1974) 83-85 Neutron powder profile refinement of ferroelectric and antiferroelectric crystal structures: sodium niobate at 22 deg C Locality: synthetic _database_code_amcsd 0018686 CELL PARAMETERS: 5.5679 15.5156 5.5029 90.000 90.000 90.000 SPACE GROUP: Pbma X-RAY WAVELENGTH: 1.541838 Cell Volume: 475.392 Density (g/cm3): 4.579 MAX. ABS. INTENSITY / VOLUME**2: 62.34057986 RIR: 4.433 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 22.72 90.55 3.9139 1 0 1 4 22.93 45.14 3.8789 0 4 0 2 28.60 1.52 3.1210 1 3 1 8 32.15 25.76 2.7840 2 0 0 2 32.50 100.00 2.7551 1 4 1 8 32.54 24.46 2.7515 0 0 2 2 32.68 2.16 2.7402 2 1 0 4 36.66 1.42 2.4514 2 3 0 4 36.97 1.22 2.4316 1 5 1 8 38.46 1.75 2.3404 0 6 1 4 39.86 2.06 2.2617 2 4 0 4 40.18 3.08 2.2442 0 4 2 4 46.40 37.80 1.9570 2 0 2 4 46.79 1.21 1.9416 2 1 2 8 46.84 19.39 1.9395 0 8 0 2 52.00 8.29 1.7586 3 0 1 4 52.37 15.57 1.7472 2 4 2 8 52.53 7.57 1.7422 1 0 3 4 52.67 15.87 1.7378 1 8 1 8 55.16 2.41 1.6650 3 3 1 8 57.54 16.99 1.6017 3 4 1 8 57.95 9.89 1.5914 2 8 0 4 58.04 21.57 1.5893 1 4 3 8 58.20 9.77 1.5852 0 8 2 4 60.51 1.30 1.5300 3 5 1 8 67.26 4.14 1.3920 4 0 0 2 68.06 17.52 1.3775 2 8 2 8 68.16 4.22 1.3757 0 0 4 2 72.09 1.94 1.3102 4 4 0 4 72.44 1.75 1.3046 3 0 3 4 72.56 5.39 1.3028 3 8 1 8 72.96 3.14 1.2966 0 4 4 4 73.00 5.17 1.2961 1 8 3 8 73.20 1.01 1.2930 0 12 0 2 76.73 2.99 1.2421 4 0 2 4 77.02 1.03 1.2381 4 1 2 8 77.13 5.93 1.2366 3 4 3 8 77.37 3.14 1.2334 2 0 4 4 77.80 6.86 1.2277 1 12 1 8 81.34 1.36 1.1829 4 4 2 8 81.98 2.21 1.1754 2 4 4 8 82.42 1.06 1.1702 0 12 2 4 85.96 3.44 1.1309 4 8 0 4 86.79 3.67 1.1221 0 8 4 4 89.87 1.03 1.0915 5 0 1 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.