The zone folding in the acoustic-phonon dispersion curve of GaAs/AlGaAs superlattices is demonstrated using superconducting tunnel junctions as sources and detectors of quasimonochromatic phonons. We present data on selective transmission of high-frequency phonons due to narrow band reflection determined by the superlattice period.
No takes yet. Share an insight, caveat, or question.
Narayanamurti et al. (1979) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: