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data for ICSD #158366 Coll Code 158366 Rec Date 2008/02/01 Chem Name Dibismuth Telluride Structured Bi2 Te3 Sum Bi2 Te3 ANX A2X3 D(calc) 7.86 Title Rietveld refinement of the semiconducting system Bi2-x Fex Te3 from X- ray powder diffraction Author(s) Adam, A. Reference Materials Research Bulletin (2007), 42, 1986-1994 Unit Cell 4.3849 4.3849 30.4971 90. 90. 120. Vol 507.82 Z 3 Space Group R -3 m H SG Number 166 Cryst Sys trigonal/rhombohedral Pearson hR5 Wyckoff c2 a R Value .0738 Red Cell RH 4.384 4.384 10.476 77.919 77.919 60 169.273 Trans Red 1.000 0.000 0.000 / 1.000 1.000 0.000 / 0.667 0.333 0.333 Comments Rietveld profile refinement applied Standard deviation missing in cell constants Structure type : Bi2Te3 X-ray diffraction (powder) At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Bi 1 +3 6 c 0. 0. 0.3985 1. 0 Te 1 -2 3 a 0. 0. 0. 1. 0 Te 2 -2 6 c 0. 0. 0.7919 1. 0 Std. Notes Transformation Method: Tidy Std. Cell 4.3849 4.3849 30.4971 90 90 120 Std. Vol. 507.82 Std. Z 3 Std. SG R3-MH Std. Atom Atom # OX SITE x y z SOF Bi 1 +3 6 c 0 0 .39850 1. Te 1 -2 3 a 0 0 0 1. Te 2 -2 6 c 0 0 .20810 1. *end for ICSD #158366 |

2Â¥2012-03-29 19:39:47
linhua0402313
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*data for ICSD #2084 Coll Code 2084 Rec Date 1980/01/01 Mod Date 2007/08/01 Chem Name Antimony Telluride Structured Sb2 Te3 Sum Sb2 Te3 ANX A2X3 Min Name Tellurantimony D(calc) 6.5 Title Refinement of the Sb2 Te and Sb2 Te Se structures and their relationship to nonstoichiometric Sb2 Te3-y Sey compounds Author(s) Anderson, T.L.;Krause, H.B. Reference Acta Crystallographica B (24,1968-38,1982) (1974), 30, 1307-1310 Canadian Mineralogist (1973), 12, 55-60 Unit Cell 4.264(1) 4.264(1) 30.4580(70) 90. 90. 120. Vol 479.59 Z 3 Space Group R -3 m H SG Number 166 Cryst Sys trigonal/rhombohedral Pearson hR5 Wyckoff c2 a R Value .036 Red Cell RH 4.264 4.264 10.446 78.224 78.224 60 159.862 Trans Red 1.000 0.000 0.000 / 1.000 1.000 0.000 / 0.667 0.333 0.333 Comments Cell in 2nd reference: 4.262, 30.450 (synthetic) and 4.258, 30.516 (from Mattagami Lake mine, Quebec) Compound with mineral name: Tellurantimony The structure has been assigned a PDF number (calculated powder diffraction data): 01-071-0393 The structure has been assigned a PDF number (experimental powder diffraction data): 15-874 New refinement based on previously measured intensities Temperature factors available Structure type : Bi2Te3 X-ray diffraction from single crystal Atom # OX SITE x y z SOF H ITF(B) Sb 1 +3 6 c 0 0 0.3988 1. 0 1.4 Te 1 -2 6 c 0 0 0.7872 1. 0 0.5 Te 2 -2 3 a 0 0 0 1. 0 0.8 Std. Notes Transformation Method: Tidy Std. Cell 4.2640 4.2640 30.4580 90 90 120 Std. Vol. 479.59 Std. Z 3 Std. SG R3-MH Std. Atom Atom # OX SITE x y z SOF Sb 1 +3 6 c 0 0 .39880 1. Te 1 -2 6 c 0 0 .21280 1. Te 2 -2 3 a 0 0 0 1. *end for ICSD #2084 |

3Â¥2012-03-29 19:40:30
linhua0402313
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Rosy_Future: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-03-30 12:11:24
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4Â¥2012-03-29 19:41:46
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