Ba2 Cu3 O6.86 Y Francois M, Junod A, Yvon K, Hewat A, Capponi J, Strobel P, Marezio M, Fischer P Solid State Communications 66 (1988) 1117-1125 A study of the Cu-O chains in the high Tc superconductor Y Ba2 Cu3 O7 by high resolution neutron powder diffraction _cod_database_code 1008419 _database_code_amcsd 0016328 CELL PARAMETERS: 3.8103 3.8789 11.6287 90.000 90.000 90.000 SPACE GROUP: Pmmm X-RAY WAVELENGTH: 1.541838 Cell Volume: 171.870 Density (g/cm3): 6.414 MAX. ABS. INTENSITY / VOLUME**2: 2.422089091 RIR: 0.123 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.60 100.00 11.6287 0 0 1 2 15.24 75.36 5.8144 0 0 2 2 22.93 43.10 3.8789 0 1 0 2 22.94 23.44 3.8762 0 0 3 2 23.35 23.04 3.8103 1 0 0 2 24.19 26.42 3.6796 0 1 1 4 24.59 11.08 3.6209 1 0 1 4 27.64 8.80 3.2268 0 1 2 4 28.00 13.87 3.1869 1 0 2 4 30.76 2.51 2.9072 0 0 4 2 32.66 81.60 2.7419 0 1 3 4 32.95 78.03 2.7182 1 1 0 4 32.96 81.59 2.7173 1 0 3 4 33.87 1.09 2.6469 1 1 1 8 36.49 3.35 2.4624 1 1 2 8 38.71 2.38 2.3263 0 1 4 4 38.72 1.31 2.3257 0 0 5 2 38.97 1.83 2.3113 1 0 4 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.