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Anharmonic effects on infrared spectra of GaAs and GaP

Hadley M. Lawler·Eric L. Shirley
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Abstract

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.

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Hadley M. Lawler, Eric L. Shirley. 2004-07-19. Anharmonic effects on infrared spectra of GaAs and GaP. https://arxiv.org/abs/cond-mat/0407485

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