The effect of the electron-electron self-energy on the single-particle states lying above the chemical potential is calculated in copper, within the slowly-varying-density approximation. The general trend is found to be in agreement with the available experimental data, though the magnitude of the lifetime broadening appears to be smaller than that deduced from a photoemission experiment.
Calculated dispersion and lifetime of one-electron states in copper
PETRILLO, Caterina;SACCHETTI, Francesco
1984
Abstract
The effect of the electron-electron self-energy on the single-particle states lying above the chemical potential is calculated in copper, within the slowly-varying-density approximation. The general trend is found to be in agreement with the available experimental data, though the magnitude of the lifetime broadening appears to be smaller than that deduced from a photoemission experiment.File in questo prodotto:
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