| 最小度和f-因子 |
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| 引用本文： | 苏本堂,扈文峰. 最小度和f-因子[J]. 山东大学学报(理学版), 1997, 0(2) |
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| 作者姓名： | 苏本堂 扈文峰 |
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| 作者单位： | 山东大学数学系 |
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| 摘 要： | 对图存在ｆ－因子的最小度条件进行了研究，得到了一个充分条件并推广了已有的结果．
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| 关 键 词： | 图论；f－因子；最小度 |
THE PREPARATION AND INFRARED ABSORPTION SPECTRA OF RARE EARTH(Y) SILICIDE |
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| Cheng Xingkui. THE PREPARATION AND INFRARED ABSORPTION SPECTRA OF RARE EARTH(Y) SILICIDE[J]. Journal of Shandong University, 1997, 0(2) |
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| Authors: | Cheng Xingkui |
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| Abstract: | The films of rare earth(Y) silicide have been prepared by r.f.sputtering.There are an intense absorption peak at 865cm -1 and a weak at 462cm -1 in infrared absortion spectra of samples.After the samples were annealed at high temperature,the intense absorption peak almost unchange, but the weak one rise with increasing annealing temperature. That the intense absorption peak at 865cm -1 is attributed to vibrating of YSi 2 bond and the weak peak at 462cm -1 ia due to that of YSi. |
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| Keywords: | sputtering rare earth silicide infrared absorption spectra |
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