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Electron Momentum Spectroscopy of Atoms, Molecules, and Thin Films

机译:原子,分子和薄膜的电子动量谱

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摘要

A review of the theory of electron momentum spectroscopy (EMS) based on the single (multiple) electron impact ionization of a quantum target (atom, molecule, thin film) is presented. Numerous examples are considered which demonstrate the advantages of EMS for interpreting the momentum distributions of the ejected electrons compared to other methods used for direct studies of the many-body wave function of a target. In particular, it is shown that EMS provides considerable progress in the quantum chemistry of molecules and gives a better understanding of processes leading to rearrangement of their outer electron orbitals upon their adiabatic approach. In addition, EMS allows one to study in detail the band structure and form of one-electron wave functions for both crystalline and amorphous thin films. The possibility of direct 'portraying' of electron correlations in atoms using the double ionization technique is also considered.
机译:提出了基于量子目标(原子,分子,薄膜)的单次(多次)电子碰撞电离的电子动量光谱学(EMS)理论的综述。与用于直接研究目标多体波函数的其他方法相比,考虑了无数示例,这些示例证明了EMS在解释喷射电子的动量分布方面的优势。特别地,显示出EMS在分子的量子化学方面提供了相当大的进展,并且更好地理解了在绝热方法下导致其外电子轨道重排的过程。另外,EMS允许人们详细研究晶体和非晶薄膜的能带结构和单电子波函数形式。还考虑了使用双电离技术直接“描绘”原子中电子相关性的可能性。

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