Polar optical interface phonons and Fröhlich interaction in double heterostructures
- 15 December 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (12), 7132-7137
- https://doi.org/10.1103/physrevb.30.7132
Abstract
The phonon dispersion relations and the Fröhlich interaction in polar double heterostructures are derived, by application of a modified image-charge ansatz. The interface phonons couple to form a symmetric and antisymmetric normal mode. The effective interaction is described by two-dimensional form factors, which represent a reasonable measure for the interaction strength. The theoretical results are in good agreement with recent magnetophonon experiments.Keywords
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