In-situ XAFS studies on local structures of molten InSb compounds

	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
刊名	PHYSICA SCRIPTA
	2005
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
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000204272100114
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237326]
专题	高能物理研究所_多学科研究中心高能物理研究所_计算中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.