特集「2019年日本表面真空学会学術講演会特集号Ⅱ」
波数空間分解光電子分光を用いた有機分子吸着サイト解析手法の開発
2020 年 63 巻 7 号 p. 336-342
詳細
2020 年 63 巻 7 号 p. 336-342
Recently, we have extended the multiple scattering theory (MS) and developed a program to elucidate characteristics of the photoelectron momentum maps (PMMs) from the expanded molecular orbital of the molecular thin films. The PMMs, which are extracted from the angle-resolved photoelectron spectroscopy (ARPES) data are a powerful technique to visualize the interaction between the molecular thin film and the substrate via a reconstruction of molecular orbitals. The calculated PMMs for sample which show the fine structure in the center of PMMs implying an additional influence of the scattering by the substrate are good agreement with experimental results. On the other hand, the result of the simulation based on plane wave approximation (PW) cannot represent the fine structure observed by the extended MS. Furthermore, we can also demonstrate that adsorption positions of organic molecule on the substrate are visualized from the analysis of the PMMs.
