Intersubband magnetophonon resonances in quantum cascade structures

D. Smirnov, O. Drachenko, J. Leotin, H. Page, C. Becker, C. Sirtori, V. Apalkov, and T. Chakraborty
Phys. Rev. B 66, 125317 – Published 27 September 2002
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Abstract

We have studied magnetotransport in GaAs/GaAlAs quantum cascade structures. These systems initially designed for intersubband laser emission are peculiar double barrier resonant tunneling structures. Under strong magnetic field applied parallel to the vertical current, we have observed marked quantum oscillations in the magnetoresistance that have field positions independent of the applied bias. These oscillations are explained as intersubband magnetophonon resonance due to electron relaxation by emission of optical phonons.

  • Received 19 April 2002

DOI:https://doi.org/10.1103/PhysRevB.66.125317

©2002 American Physical Society

Authors & Affiliations

D. Smirnov*, O. Drachenko, and J. Leotin

  • Laboratoire National des Champs Magnétiques Pulsés, 135 Avenue de Rangueil, 31077 Toulouse, France

H. Page, C. Becker, and C. Sirtori

  • Laboratoire Central de Recherches Thalès, 91404 Orsay, France

V. Apalkov and T. Chakraborty

  • Max-Plank-Institut für Physik komplexer Systeme, 01187 Dresden, Germany

  • *Also at Ioffe Physico-Technical Institute, 194021, Saint Petersburg, Russia.
  • Department of Physics, University of Utah, Salt Lake City, Utah 84112.
  • Present address: Institute of Mathematical Sciences, Chennai 600113, India

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Issue

Vol. 66, Iss. 12 — 15 September 2002

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