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VOLUME 52 (1990) | ISSUE 9 | PAGE 1068
Trapped phonons in the reflection spectra of GaAs/AlGaAs superlattices
Structural features attributable to the trapping of transverse optical phonons in the layers of GaAs/AlGaAs superlattices have been observed in reflection spectra. The dispersion of TO phonons in AlAs has been measured for the first time.