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Effect of electron-phonon interaction on the shift and attenuation of optical phonons

L. A. Falkovsky
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Abstract

Using the Boltzmann equation for electrons in metals, we show that the optical phonons soften and have a dispersion due to screening in agreement with the results reported recently [M. Reizer, Phys. Rev. B {\bf 61}, 40 (2000)]. Additional phonon damping and frequency shift arise when the electron--phonon interaction is properly included.

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L. A. Falkovsky. 2002-03-06. Effect of electron-phonon interaction on the shift and attenuation of optical phonons. https://doi.org/10.1103/physrevb.66.020302

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