The spectral momentum density of aluminium, copper and gold measured by electron momentum spectroscopy

Date

2001

Authors

Kheifets, Anatoli
Vos, Maarten
Weigold, Erich

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Publisher

Oldenbourg Wissenschaftsverlag

Abstract

Electron momentum spectroscopy (EMS) gives direct information of the full energy-resolved electron momentum densities of occupied states (bands) in solids - single crystal, polycrystalline or amorphous. Here we present data from a new high energy EMS spectrometer using 50 keV incident and 25 keV outgoing electrons, on polycrystalline specimens of aluminium, copper and gold. The spectral momentum densities show very significant electron-electron correlation effects which are in good agreement with many-body Green's function calculations.

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Source

Zeitschrift fur Physikalische Chemie

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Journal article

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