金-銅及び金-銀合金における電子の非弾性平均自由行程の計算(<特集>表面・界面・薄膜と分析化学)

DOI NDLデジタルコレクション Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • 金‐銅及び金‐銀合金における電子の非弾性平均自由行程の計算
  • Calculationsof the electron inelastic free paths in Au-Cu and Au-Ag alloys.
  • キン ドウ キン ギン ゴウキン ニ オケル デンシ ノ ヒ ダンセイ ヘイキ

この論文をさがす

抄録

The surface sensitivity of electron spectroscopy, such as Auger electron spectroscopy(AES) and X-ray photoelectron spectroscopy(XPS), depends on the mean free paths for both the inelastic and elastic scattering in the investigated material. We calculated the electron inelastic mean free paths(IMFPs) of 502000eV elcctrons in 27 elemental solids and 15 compounds using the Penn algorithm, and proposed a general formula (TPP-2) for predicting IMFP in solids based on the calculated results. However, it is not clear that TPP-2 could be applied to alloy systems. Since the Penn algorithm requires optical constants in the range 02000eV for calculating the IMFPs, we tried to estimate the optical constants for alloys from the values of optical constants of the component elements for them. Using these values, we determined the energy-loss functions of Au-Cu and Au-Ag alloys by supposing that these are completely idealized alloys. The IMFPs of these alloys were then calculated in the range 502000eV with the Penn algorithm. The calculated IMFPs were fitted to our TPP-2 formula within a 1% relative error. It is, thus, clear that our TPP-2 formula can be used to determine the energy and material dependence of IMFPs in the alloys.We found that parametersβ, γ, C and D of the TPP-2 formula for alloys could be obtained by a linear combination of the values of the component elements.

収録刊行物

  • 分析化学

    分析化学 40 (11), 667-672, 1991

    公益社団法人 日本分析化学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ