Abstract
The coupling of electrons to interface and slab optical optical phonon modes is studied in the presence of a high magnetic field in a GaAs/AlAs quantum well. The position of the Landau levels and the magneto-optical absorption spectrum for cyclotron resonance are calculated. We find that in narrow GaAs/AlAs quantum wells a substantial coupling of the electron to the interface phonons shows up near the LO- and TO-phonon modes of GaAs and AlAs.
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