Anharmonic effects on infrared spectra of GaAs and GaP

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With a study of bulk GaAs and GaP, we report detailed infrared spectra and their temperature dependence from first principles. Fine features and low-temperature trends in the predicted response are confirmed by experiment. The spectra are calculated from the far-infrared through twice the frequency of the zone-center optical phonon. The treatment relies on recent developments in the theories of dielectric polarization and the phonon-phonon interaction.
5 pages

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/24445

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0407485
 http://arxiv.org/abs/cond-mat/0407485

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arXiv