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Electron-phonon interaction and coupled phonon--plasmon modes

L. Falkovsky
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Abstract

The theory of Raman scattering by the electron--phonon coupled system in metals and heavily doped semiconductors is developed taking into account the Coulomb screening and the electron--phonon deformation interaction. The Boltzmann equation for carriers is applied. Phonon frequencies and optic coupling constants are renormalized due to interactions with carriers. The $k-$dependent semiclassical dielectric function is involved instead of the Lindhard-Mermin expression. The results of calculations are presented for various values of carrier concentration and electron-phonon coupling constant.

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L. Falkovsky. 2003-03-24. Electron-phonon interaction and coupled phonon--plasmon modes. https://doi.org/10.1134/1.1625070

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