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xwyan新虫 (正式写手)
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如何查找某种晶体的结构参数(晶格常数和各个原子位置坐标)
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如何查找某种晶体的结构参数(晶格常数和各个原子位置坐标) 我以前的查找都是通过google,找到某篇文章,再依次查找,但是这样很慢,很费时。 有些没有这样的手册或者免费的数据库? 请各位虫友多指导,十分谢谢 |
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xwyan
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2楼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 |
3楼2009-09-08 23:36:28
gyliu
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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 |
4楼2009-09-09 08:59:26
gyliu
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*data for ICSD #43950 Coll Code 43950 Rec Date 2000/07/15 Chem Name Gallium Arsenide (1/1) - Hp Structured Ga As Sum As1 Ga1 ANX AX D(calc) 7.73 Title Structural phase transitions in Ga As to 108 GPa Author(s) Weir, S.T.;Vohra, J.K.;Vanderborgh, C.A.;Ruoff, A.L. Reference Physical Review, Serie 3. B - Condensed Matter (18,1978-) (1989), 39, 1280-1285 Unit Cell 4.92(1) 4.79(1) 2.635(6) 90. 90. 90. Vol 62.1 Z 2 Space Group I m m 2 SG Number 44 Cryst Sys orthorhombic Pearson oI4 Wyckoff b a R Value .177 Red Cell I 2.635 3.677 3.677 81.275 69.006 69.006 31.049 Trans Red 0.000 0.000 -1.000 / 0.500 0.500 -0.500 / 0.500 -0.500 -0.500 Comments Stable above 24 GPa The structure has been assigned a PDF number (calculated powder diffraction data): 01-089-3290 Pressure in MPa: 28100 X-ray diffraction (powder) At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Ga 1 +3 2 b 0 0.5 0.425 1. 0 As 1 -3 2 a 0 0 0 1. 0 *end for ICSD #43950 |
5楼2009-09-09 08:59:50
gyliu
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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 |
6楼2009-09-09 09:00:08
gyliu
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*data for ICSD #43951 Coll Code 43951 Rec Date 2000/07/15 Chem Name Gallium Arsenide (1/1) - Hp Structured Ga As Sum As1 Ga1 ANX AX D(calc) 7.65 Title Structural phase transitions in Ga As to 108 GPa Author(s) Weir, S.T.;Vohra, J.K.;Vanderborgh, C.A.;Ruoff, A.L. Reference Physical Review, Serie 3. B - Condensed Matter (18,1978-) (1989), 39, 1280-1285 Unit Cell 2.482(6) 4.83(1) 2.618(6) 90. 90. 90. Vol 31.38 Z 1 Space Group P m m 2 SG Number 25 Cryst Sys orthorhombic Pearson oP2 Wyckoff b a R Value .177 Red Cell P 2.482 2.618 4.83 89.999 89.999 90 31.385 Trans Red 1.000 0.000 0.000 / 0.000 0.000 1.000 / 0.000 -1.000 0.000 Comments Stable form between 16.6 and 24 GPa The structure has been assigned a PDF number (calculated powder diffraction data): 01-089-3291 Pressure in MPa: 22900 X-ray diffraction (powder) At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Ga 1 +3 1 b 0 0.5 0.35 1. 0 As 1 -3 1 a 0 0 0 1. 0 *end for ICSD #43951 |
7楼2009-09-09 09:00:50
gyliu
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*data for ICSD #41992 Coll Code 41992 Rec Date 2000/07/15 Chem Name Gallium Arsenide - Hp Structured Ga As Sum As1 Ga1 ANX AX D(calc) 5.79 Title Tetrahedral structures and phase transitions in III-V semiconductors Author(s) Crain, J.;Piltz, R.O.;Ackland, G.J.;Clark, S.J.;Payne, M.C.;Milman, V.;Lin, J.S.;Hatton, P.D.;Nam, Y.H. Reference Physical Review, Serie 3. B - Condensed Matter (18,1978-) (1994), 50, 8389-8401 Unit Cell 6.922 6.922 6.922 90. 90. 90. Vol 331.66 Z 8 Space Group P a -3 SG Number 205 Cryst Sys cubic Pearson cP16 Wyckoff c2 Red Cell P 6.922 6.922 6.922 90 90 90 331.661 Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000 Comments Ab initio calculations, atoms shifted by 1/4 1/4 1/4 Given space group was P213 The structure has been assigned a PDF number (calculated powder diffraction data): 01-079-0614 Structure calculated theoretically Structure type : CuCl 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 8 c 0.3447 0.3447 0.3447 1. 0 As 1 -3 8 c 0.1466 0.1466 0.1466 1. 0 *end for ICSD #41992 |
8楼2009-09-09 09:01:37
xwyan
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9楼2009-09-09 13:42:20
wangpf
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10楼2009-09-27 21:55:45












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