Abstract
Going beyond the Hartree and Hartree–Fock approximations, this chapter deals with fluctuations of an electron gas away from the mean-field approximation. Having introduced the basic distinction between collective effects at long wavelength (plasmons) and single-particle interactions at short range, we derive the short-range interparticle scattering rate and discuss its implementation in the study of electron transport. We also discuss the interband process of impact ionization. We conclude with a brief discussion of band-gap narrowing, a related Coulomb effect at high density.
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Fischetti, M.V., Vandenberghe, W.G. (2016). Coulomb Interactions Among Free Carriers. In: Advanced Physics of Electron Transport in Semiconductors and Nanostructures. Graduate Texts in Physics. Springer, Cham. https://doi.org/10.1007/978-3-319-01101-1_15
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DOI: https://doi.org/10.1007/978-3-319-01101-1_15
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