Cyclotron resonance of an interacting polaron gas in a quantum well: Magnetoplasmon-phonon mixing
Abstract
Cyclotron-resonance (CR) spectra of a gas of interacting polarons confined in a GaAs/AlAs quantum well are theoretically investigated taking into account the magnetoplasmon-phonon mixing and band nonparabolicity. Contributions of different magnetoplasmon-phonon modes to the total magnetopolaron coupling strength are investigated as a function of the electron density. It is confirmed theoretically, that the resonant magnetopolaron 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.
- Publication:
-
Physical Review B
- Pub Date:
- December 2003
- DOI:
- arXiv:
- arXiv:cond-mat/0308553
- Bibcode:
- 2003PhRvB..68x5303K
- Keywords:
-
- 78.67.De;
- 71.38.-k;
- 78.30.Fs;
- Quantum wells;
- Polarons and electron-phonon interactions;
- III-V and II-VI semiconductors;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 16 pages, 4 figures, accepted in Phys. Rev. B