Resonant magnetopolaron effect in a high electron density quantum well in a tilted magnetic field

S. N. Klimin, V. M. Fomin, and J. T. Devreese

Phys. Rev. B 77, 205311 – Published 12 May 2008

Abstract

The cyclotron resonance (CR) spectra are calculated for a high electron density $Ga As ∕ Al As$ quantum well in a tilted magnetic field. The CR peaks are split due to (i) the resonant magnetopolaron effect and (ii) the anticrossing of the CR mode and the plasmon-phonon intersubband modes. The derived CR peak positions and amplitudes are in good agreement with experiment. It is shown that the experimental CR spectra find an adequate explanation within Fröhlich’s polaron concept.

Received 22 January 2008

DOI:https://doi.org/10.1103/PhysRevB.77.205311

Authors & Affiliations

S. N. Klimin^*, V. M. Fomin^†, and J. T. Devreese^‡

Theoretische Fysica van de Vaste Stoffen (TFVS), Universiteit Antwerpen, B-2020 Antwerpen, Belgium

^*On leave from Physics of Multilayer Structures, Department of Theoretical Physics, State University of Moldova, A. Mateevici 60, MD-2009 Chişinău, Moldova.
^†Also at Photonics and Semiconductor Nanophysics, COBRA, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands. On leave from: Physics of Multilayer Structures, Department of Theoretical Physics, State University of Moldova, A. Mateevici 60, MD-2009 Chişinău, Moldova.
^‡Also at Photonics and Semiconductor Nanophysics, COBRA, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

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Issue

Vol. 77, Iss. 20 — 15 May 2008

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