Physical Review Letters

Paper

28 Apr 1986

Observation of long-wavelength interface phonons in a GaAs/AlGaAs superlattice

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Abstract

We report on the first observation of long-wavelength interface optical phonons in a GaAs/AlGaAs superlattice by high-resolution electron-energy-loss spectroscopy. The observed spectrum is well accounted for by scattering theory with material data taken from infrared spectroscopy. © 1986 The American Physical Society.

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