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In-situ XAFS studies on local structures of molten InSb compounds
Wei, SQ; Lu, KQ; Li, CX; Zhong, WJ; Yan, WS; Uruga, T; Chen, W; Niu, XJ; Wu, ZH; Chen, DL; Sun, ZH; Wu ZH(吴忠华)
2005
发表期刊PHYSICA SCRIPTA
卷号T115页码:399-401
通讯作者[Wei, Shiqiang ; Zhong, Wenjie ; Yan, Wensheng ; Chen, Dongliang ; Sun, Zhihu] Univ Sci & Technol China, Nat Synchrotron Radiat Lab, Hefei 230029, Peoples R China ; [Lu, Kunquan ; Li, Chenxi ; Chen, Wei ; Niu, Xiaojuan] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China ; [Uruga, Tomaya] Japan Synchrotron Radiat Res Inst, Mikazuki, Hyogo 67985198, Japan ; [Wu, Zhonghua] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
摘要The local structures of semiconductor InSb compound have been studied by in-situ XAFS in the temperature range of 300 and 823 K. Reverse Mont Carlo calculation is used to simultaneously fit both In and Sb K-edge EXAFS functions k chi(k) of InSb compound. The fitting results indicate that the average bond length R-1 (2.80 angstrom) and the average coordination number N-1 (4.0) of the first In-Sb (or Sb-In) shell of InSb (723K) are similar to those (2.79 angstrom, 4.0) of crystalline InSb (300K) with a zinc-blende structure, in spite of InSb compound possessing a large thermal disorder degree at 723 K. At the temperature of 828 K (T-m(InSb) = 798 K), the R-1 and N-1 of the first In-Sb shell are 2.90 angstrom and 5.8, and the R-1 and N-1 of the first Sb-In shell are 2.90 angstrom and 5.5 for molten InSb, respectively. For molten InSb (828 K), the coordination numbers of the In-Sb (or Sb-In) first shell are mostly 5 and 6, and a few percent of In-In (or Sb-Sb) coordination appears in the first shell. It implies that the tetrahedron structures of the In-Sb (or Sb-In) covalent bonds of InSb compound have been destroyed in the liquid state.
文章类型Article
学科领域Physics
研究领域[WOS]Physics
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语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000204272100114
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237326
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Wei, SQ,Lu, KQ,Li, CX,et al. In-situ XAFS studies on local structures of molten InSb compounds[J]. PHYSICA SCRIPTA,2005,T115:399-401.
APA Wei, SQ.,Lu, KQ.,Li, CX.,Zhong, WJ.,Yan, WS.,...&吴忠华.(2005).In-situ XAFS studies on local structures of molten InSb compounds.PHYSICA SCRIPTA,T115,399-401.
MLA Wei, SQ,et al."In-situ XAFS studies on local structures of molten InSb compounds".PHYSICA SCRIPTA T115(2005):399-401.
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