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*data for ICSD #67773 Coll Code 67773 Rec Date 1994/06/30 Chem Name Gallium Arsenide Structured Ga As Sum As1 Ga1 ANX AX D(calc) 5.62 Title Zinc-blende-Wurtzite polytypism in semiconductors Author(s) Yeh, C.;Lu, Z.W.;Froyen, S.;Zunger, A. Reference Physical Review, Serie 3. B - Condensed Matter (18,1978-) (1992), 46(16), 10086-10097 Unit Cell 3.912 3.912 6.441 90. 90. 120. Vol 85.37 Z 2 Space Group P 63 m c SG Number 186 Cryst Sys hexagonal Pearson hP4 Wyckoff b2 Red Cell P 3.912 3.912 6.441 90 90 120 85.365 Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000 Comments The structure has been assigned a PDF number (calculated powder diffraction data): 01-080-0003 Structure calculated theoretically Structure type : ZnS(2H) X-ray diffraction from single crystal No R value given in the paper. At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Ga 1 +3 2 b 0.3333 0.6667 0 1. 0 As 1 -3 2 b 0.3333 0.6667 0.374 1. 0 *end for ICSD #67773 |
6Â¥2009-09-09 09:00:08
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2Â¥2009-09-08 22:59:15
you can find them in Handbook of Chemistry and physics
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Handbook of Chemistry and physics or III-V compound semiconductor from http://en.wikipedia.org/wiki/Gallium_arsenide good luck |
3Â¥2009-09-08 23:36:28
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*data for ICSD #107946 Coll Code 107946 Rec Date 2006/10/01 Chem Name Gallium Arsenide Structured Ga As Sum As1 Ga1 ANX AX D(calc) 5.32 Title Thermal vibrations and bonding in Ga As: an extended-face crystal study Author(s) Stevenson, A.W. Reference Acta Crystallographica A (39,1983-) (1994), 50, 621-632 Unit Cell 5.652(1) 5.652(1) 5.652(1) 90. 90. 90. Vol 180.55 Z 4 Space Group F -4 3 m SG Number 216 Cryst Sys cubic Pearson cF8 Wyckoff c a R Value .007 Red Cell F 3.996 3.996 3.996 60 60 60 45.138 Trans Red 0.500 0.500 0.000 / 0.000 0.500 0.500 / 0.500 0.000 0.500 Comments Temperature in Kelvin: 296 Structure type : ZnS(cF8) X-ray diffraction from single crystal Atom # OX SITE x y z SOF H Ga 1 +3 4 a 0 0 0 1. 0 As 1 -3 4 c 0.25 0.25 0.25 1. 0 *end for ICSD #107946 |
4Â¥2009-09-09 08:59:26














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