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Measurement of the infrared transmission through a single doped GaAs quantum well in an external magnetic field : Evidence for polaron effects

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2009

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Faugeras, Clement
Orlita, Milan
Martinez, Gerhard
Yu, Peter Y.
Riedel, Angela
Hey, Rudolf
Friedland, K. J.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-245447
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https://doi.org/10.1103/PhysRevB.80.073303
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Physical Review B. 2009, 80(7). ISSN 1098-0121. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.80.073303

Zusammenfassung

Precise absolute far-infrared magnetotransmission experiments have been performed in magnetic fields up to 33 T on a series of single GaAs quantum wells doped at different levels. The transmission spectra have been simulated with a multilayer dielectric model. The imaginary part of the optical response function which reveals singular features related to the electron-phonon interactions has been extracted. In addition to the expected polaronic effects due to the longitudinal-optical phonon of GaAs, a kind of carrier-concentration-dependent interaction with interface phonons is observed. A simple physical model is used to try to quantify these interactions and explore their origin.

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ISO 690FAUGERAS, Clement, Milan ORLITA, Sven DEUTSCHLÄNDER, Gerhard MARTINEZ, Peter Y. YU, Angela RIEDEL, Rudolf HEY, K. J. FRIEDLAND, 2009. Measurement of the infrared transmission through a single doped GaAs quantum well in an external magnetic field : Evidence for polaron effects. In: Physical Review B. 2009, 80(7). ISSN 1098-0121. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.80.073303
BibTex
@article{Faugeras2009Measu-24544,
  year={2009},
  doi={10.1103/PhysRevB.80.073303},
  title={Measurement of the infrared transmission through a single doped GaAs quantum well in an external magnetic field : Evidence for polaron effects},
  number={7},
  volume={80},
  issn={1098-0121},
  journal={Physical Review B},
  author={Faugeras, Clement and Orlita, Milan and Deutschländer, Sven and Martinez, Gerhard and Yu, Peter Y. and Riedel, Angela and Hey, Rudolf and Friedland, K. J.}
}
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