Abstract
A theoretical survey will be given of the properties of quasi-two-dimensional polarons in a magnetic field. One polaron and many-polaron effects will be discussed. The cyclotron resonance absorption spectrum of a gas of quasi-two-dimensional polarons is calculated using linear response theory. The calculation is based on a memory function formalism. Band non-parabolicity and the many-body character of the system with inclusion of the full dynamical screening of the electron-phonon interaction is incorporated. Comparison is made with experimental results on the cyclotron mass in GaAs/Al x Ga1−x As heterostructures. We found that for electron densities larger than 1.4 × 1011 cm −2 the polaron mass renormalization is smaller than for the corresponding bulk GaAs system.KeywordsCyclotron ResonanceLandau LevelLinear Response TheoryPolaron EffectCyclotron MassThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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