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

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

2002-03-06

arxiv.org/abs/cond-mat/0203112v1

Physics

Condensed Matter

Materials Science

4 pages, latex

Scientific paper

10.1103/PhysRevB.66.020302

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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