版块导航: 正在加载中...

登录注册

应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜

返回列表

Yolanda7

捐助贵宾 (正式写手)

应助: 0 (幼儿园)
金币: 11.9
帖子: 528
在线: 148.3小时
虫号: 670625

[交流] 2H-SiC 的分数坐标

大家好，我想求2H-SiC的分数坐标数据。
目前只有如下信息：六角纤锌矿结构(Hexagonal Wurtzite)属于P63mc空间群，晶格常数a=b=0.3081nm，c=0.5031nm，α=β=90°，γ=120°

目前金币不多，请大家慷慨帮忙啊。。。

回复此楼

» 猜你喜欢

有没有人能给点建议已经有5人回复
假如你的研究生提出不合理要求已经有12人回复
实验室接单子已经有7人回复
全日制（定向）博士已经有5人回复
萌生出自己或许不适合搞科研的想法，现在跑or等等看？已经有4人回复
Materials Today Chemistry审稿周期已经有4人回复
参与限项已经有3人回复
对氯苯硼酸纯化已经有3人回复
所感已经有4人回复
要不要辞职读博？已经有7人回复

» 本主题相关价值贴推荐，对您同样有帮助:

6H-SiC，4H-SiC，3C-SiC，2H-SiC，15R-SiC，51R-SiC的形成温度各是多少？已经有8人回复
北交考博分数出来了。已经有67人回复
正格矢和倒易格矢以及直角坐标和分数坐标的关系已经有9人回复
南大英语分数线预测贴！已经有33人回复
浙大博士2011复试为何没有学校正式公布分数线已经有34人回复
中科院英语分数线58分已经有22人回复
【求助】北京理工大学博士录取时除了学校的分数线外，各学院内部有再划自己的线吗？已经有12人回复
【求助】水滑石(LDH,Layered double hydroxide)用MS模拟时的分数坐标已经有14人回复
【求助】求助中科院成都有机所近几年的英语分数线已经有9人回复
【交流】大家评价下中国地质大学（北京）的英语分数线已经有30人回复

» 抢金币啦！回帖就可以得到:

查看全部散金贴

1楼 2012-06-18 22:34:05

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

hakuna

木虫 (知名作家)

1ST强帖: 3
应助: 82 (初中生)
金币: 8735.9
帖子: 5599
在线: 1367.2小时
虫号: 167622

★ ★ ★ ★
小木虫: 金币+0.5, 给个红包，谢谢回帖
xueht987: 金币+1, 多谢指教！ 2012-06-19 09:44:06
Yolanda7: 金币+2, 谢谢啦 2012-06-25 20:13:03

这里面找吧
http://www.ioffe.rssi.ru/SVA/NSM/Semicond/SiC/bandstr.html#Band

赞一下

回复此楼

2楼2012-06-19 05:57:29

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

jeeanlee

木虫 (正式写手)

应助: 7 (幼儿园)
金币: 3884.6
帖子: 413
在线: 280.8小时
虫号: 662429

★ ★ ★ ★ ★ ★ ★
小木虫: 金币+0.5, 给个红包，谢谢回帖
Yolanda7: 金币+6, 谢谢啦 2012-06-25 20:12:51

搜索ICSD，有下面几个结果，给你参考：
*data for ICSD #86253
CopyRight ?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
         Commerce on behalf of the United States.  All rights reserved.
Coll Code 86253
Rec  Date 1999/11/30
Mod  Date 2003/10/01
Chem Name Silicon Carbide - 2h
Structured  Si C
Sum       C1 Si1
ANX       AX
D(calc)    3.21
Title    Structure parameters and polarity of the wurtzite type compounds (Si
         C)-2H and Zn O
Author(s) Schulz, H.;Thiemann, K.H.
Reference Solid State Communications
         (1979), 32, 783-785
         Phase Transition
         (1992), 38, 127-220
Unit Cell 3.079(1) 3.079(1) 5.053(1) 90. 90. 120.
Vol       41.49
Z          2
Space Group P 63 m c
SG Number 186
Cryst Sys hexagonal
Pearson    hP4
Wyckoff    b2
R Value    .032
Red Cell P  3.079 3.079 5.053 90 90 120 41.486
Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000
Comments Stable above 2270 K (2nd ref. , Tomaszewski)
         The structure has been assigned a PDF number (calculated
         powder diffraction data): 01-089-1396
         The structure has been assigned a PDF number (experimental
         powder diffraction data): 29-1130
         Structure type : ZnS(2H)
         X-ray diffraction from single crystal
Atom  # OX SITE    x          y          z          SOF    H
Si 1  +4 2 b 0.3333    0.6667    0             1.       0
C 1  -4 2 b 0.3333    0.6667    0.3760(4)    1.       0
Lbl  Type    U11       U22       U33       U12       U13       U23
Si1  Si4+  0.0036(2) 0.0036(2) 0.0037(2) 0.0018(1) 0          0
C1 C4- 0.0038(5) 0.0038(5) 0.0036(7) 0.0019(3) 0          0
*end for ICSD #86253

*data for ICSD #42855
CopyRight ?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
         Commerce on behalf of the United States.  All rights reserved.
Coll Code 42855
Rec  Date 2000/07/15
Mod  Date 2003/10/01
Chem Name Silicon Carbide (1/1)
Structured  Si C
Sum       C1 Si1
ANX       NO
Min Name Moissanite 2H
D(calc)    3.24
Title    A review of the structure of silicon carbide
Author(s) Shaffer, P.T.B.
Reference Acta Crystallographica B (24,1968-38,1982)
         (1969), 25, 477-488
         Kristallografiya
         (1965), 10, 418-418
         Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977)
         (1959), 111, 350-361
         Phase Transition
         (1992), 38, 127-220
Unit Cell 3.073 3.073 5.028 90. 90. 120.
Vol       41.12
Z          2
Space Group P 63 m c
SG Number 186
Cryst Sys hexagonal
Pearson    hP4
Wyckoff    b2
Red Cell P  3.073 3.073 5.028 90 90 120 41.12
Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000
Comments Zhdanov-symbol: (1 1)
         Cell from 3rd reference: 3.076. 5.048, cf. 24261
         Stable above 2270 K (4th ref. , Tomaszewski)
         Compound with mineral name: Moissanite 2H
         The structure has been assigned a PDF number (calculated
         powder diffraction data): 01-089-2213
         The structure has been assigned a PDF number (experimental
         powder diffraction data): 29-1130
         Polytype structure 2H
         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
Si 1  +0 2 b 0.3333    0.6667    0             1.       0
C 1  +0 2 b 0.3333    0.6667    0.375       1.       0
*end for ICSD #42855

*data for ICSD #41487
CopyRight ?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
         Commerce on behalf of the United States.  All rights reserved.
Coll Code 41487
Rec  Date 2002/04/01
Mod  Date 2003/10/01
Chem Name Silicon Carbide (1/1)
Structured  Si C
Sum       C1 Si1
ANX       NO
Min Name Moissanite 2H
D(calc)    3.22
Title    Electronic, optical, and structural properties of some wurtzite
         crystals
Author(s) Xu, Y.-N.;Ching, W.Y.
Reference Physical Review, Serie 3. B - Condensed Matter (18,1978-)
         (1993), 48, 4335-4351
         Applied Physics Letters
         (1978), 33, 319-319
         Phase Transition
         (1992), 38, 127-220
Unit Cell 3.076 3.076 5.048 90. 90. 120.
Vol       41.36
Z          2
Space Group P 63 m c
SG Number 186
Cryst Sys hexagonal
Pearson    hP4
Wyckoff    b2
Red Cell P  3.076 3.076 5.048 90 90 120 41.364
Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000
Comments Wurtzite-type, cf. 24261
         Stable above 2270 K (3rd ref. , Tomaszewski)
         Compound with mineral name: Moissanite 2H
         The structure has been assigned a PDF number (calculated
         powder diffraction data): 01-070-2550
         The structure has been assigned a PDF number (experimental
         powder diffraction data): 29-1130
         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
Si 1  +0 2 b -.3333    -.6667    0             1.       0
C 1  +0 2 b -.3333    -.6667    0.375       1.       0
*end for ICSD #41487

*data for ICSD #24261
CopyRight ?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
         Commerce on behalf of the United States.  All rights reserved.
Coll Code 24261
Rec  Date 1980/01/01
Mod  Date 2007/08/01
Chem Name Silicon Carbide - 2h
Structured  Si C
Sum       C1 Si1
ANX       AX
Min Name Moissanite 2H
D(calc)    3.22
Title    Synthesis and crystallography of the wurtzite form of silicon carbide
Author(s) Adamsky, R.F.;Merz, K.M.
Reference Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977)
         (1959), 111, 350-361
         Acta Crystallographica B (24,1968-38,1982)
         (1969), 25, 477-488
Unit Cell 3.0763(10) 3.0763(3) 5.048(1) 90. 90. 120.
Vol       41.37
Z          2
Space Group P 63 m c
SG Number 186
Cryst Sys hexagonal
Pearson    hP4
Wyckoff    b2
R Value    .118
Red Cell P  3.076 3.076 5.048 90 90 120 41.372
Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000
Comments Zhdanov-symbol:  (1 1)
         Coordinates shifted by 2/3 1/3 0 to fit space group
         Compound with mineral name: Moissanite 2H
         The structure has been assigned a PDF number (calculated
         powder diffraction data): 01-073-1749
         The structure has been assigned a PDF number (experimental
         powder diffraction data): 29-1130
         Polytype structure 2H
         Structure type : ZnS(2H)
         X-ray diffraction from single crystal
         At least one temperature factor missing in the paper.
Atom  # OX SITE    x          y          z          SOF    H
Si 1  +4 2 b 0.6667    0.3333    0             1.       0
C 1  -4 2 b 0.6667    0.3333    0.375       1.       0

赞一下

回复此楼

3楼2012-06-19 14:44:04

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

相关版块跳转我要订阅楼主 Yolanda7 的主题更新

返回列表

24小时热门版块排行榜

Yolanda7

[交流] 2H-SiC 的分数坐标

» 猜你喜欢

» 本主题相关价值贴推荐，对您同样有帮助:

» 抢金币啦！回帖就可以得到: 查看全部散金贴

hakuna

jeeanlee

» 抢金币啦！回帖就可以得到:

查看全部散金贴