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1999

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Reviews of topical problems


Electron momentum spectroscopy of atoms, molecules, and thin films

, ,
Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Leninskie Gory 1 build. 2, Moscow, 119991, Russian Federation

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.

Fulltext pdf (819 KB)
Fulltext is also available at DOI: 10.1070/PU1999v042n10ABEH000492
PACS: 34.80.Dp, 34.90.+q, 39.90.+d, 78.66.−w (all)
DOI: 10.1070/PU1999v042n10ABEH000492
URL: https://ufn.ru/en/articles/1999/10/c/
000083688700003
Citation: Neudachin V G, Popov Yu V, Smirnov Yu F "Electron momentum spectroscopy of atoms, molecules, and thin films" Phys. Usp. 42 1017–1044 (1999)
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Оригинал: Неудачин В Г, Попов Ю В, Смирнов Ю Ф «Электронная импульсная спектроскопия атомов, молекул и тонких пленок» УФН 169 1111–1139 (1999); DOI: 10.3367/UFNr.0169.199910c.1111

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