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Relations between compositional modulation and atomic ordering degree in thin films of ternary III—V semiconductor alloys 下载免费PDF全文
This paper derives the expressions for the ordering degree and the
modulation factor of A and B atoms in AxB1-xC
epilayers of ternary III--V semiconductor alloys. Using these
expressions, it identifies quantitatively the alternating
atom-enhanced planes, compositional modulations, atomic ordering
degree on the group-III sublattices and the fine structure of NMR
spectra. 相似文献
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一种工业废料用于催化气化的尝试 总被引:2,自引:1,他引:1
筛选工业废料用于煤炭催化气化,以求解决回收催化剂的难题。所用水泥窑灰对丹东无烟煤和黄县褐煤均有较好的催化活性,可以大大提高碳的转化率,缩短气化时间。达到相同转化率时,用它催化可比无催化的反应温度降低约100℃。水泥窑灰中主要活性组分为K_2SO_4和CaCO_3。动力学测试表明,添加窑灰与不添加窑灰的气化反应均属一级反应。 相似文献
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