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History, development and future prospects for (e,2e) spectroscopy

机译:(e,2e)光谱学的历史,发展和未来前景

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Electron momentum spectroscopy of atoms, molecules and solids is based on (e,2e) reactions that observe the distribution of recoil momenta for energy-resolved states of the residual system. It is interpreted simply in terms of the momentum-space orbitals of the independent-particle model. The relevant ideas originated in nuclear physics. The earliest experiments observed that strongly-excited final states belong to orbital manifolds that extend the independent-particle ideas to correlated systems. Some weakly-excited final states do not belong to orbital manifolds. They give sensitive information about target ground-state correlations. The energy-momentum distribution of valence bands is observed for solids. Calculations for atoms, molecules and crystals converge to the experimental result as the structure calculation is improved. 42 refs., 9 figs. (Atomindex citation 27:038952)

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