Cyclotron Resonance of an Interacting Polaron Gas in a Quantum Well. Magneto-Plasmon-Phonon Mixing

Details Cyclotron Resonance of an Interacting Polaron Gas in a Quantum Well. Magneto-Plasmon-Phonon Mixing Cyclotron Resonance of an Interacting Polaron Gas in a Quantum Well. Magneto-Plasmon-Phonon Mixing

2003-08-26

arxiv.org/abs/cond-mat/0308553v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

16 pages, 4 figures, accepted in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.68.245303

Cyclotron-resonance (CR) spectra of a gas of interacting polarons confined in a GaAs/AlAs quantum well are theoretically investigated taking into account the magneto-plasmon-phonon mixing and band nonparabolicity. Contributions of different magneto-plasmon-phonon modes to the total magneto-polaron coupling strength are investigated as a function of the electron density. It is confirmed theoretically, that the resonant magneto-polaron coupling in a high-density GaAs/AlAs quantum well occurs near the GaAs TO-phonon frequency rather than near the GaAs LO-phonon frequency. Calculated CR spectra are in agreement with recent experimental data.

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