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Superlattice umklapp processes in resonant Raman scattering

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Abstract

Umklapp resonant Raman scattering by LO phonons is observed in GaAsGa1-xAlxAs superlattices as a result of minizone formation in the conduction and valence bands. The scattering mechanism involves the wavevector dependent Fröhlich-type electron-phonon interaction. © 1978.

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