Theory of Cyclotron Resonance of Two‐Dimensional Electrons Interacting With Surface and Volume Phonons

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Abstract
The interaction between nondegenerate two‐dimensional electrons in a quantizing transverse magnetic field and volume phonons is shown to be weak for the majority of systems. The coupling to surface phonons often appears to be strong. To separate the contribution of the interaction with volume phonons the diagram technique is developed. The influence of strong and weak interaction with surface phonons on the shape of the absorption peaks near the cyclotron frequency and its overtones and on the dc conductivity is analysed. The dependence of parameters on temperature and magnetic field strength is considered. The transverse electric field is shown to affect the electron—phonon coupling in the case of two‐dimensional electrons near semiconductor surfaces.