Theory of double magnetophonon resonance in a two-dimensional electron gas in a tilted magnetic field

V. V. Afonin, V. L. Gurevich, and R. Laiho
Phys. Rev. B 65, 115301 – Published 15 February 2002
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Abstract

A theory of double magnetophonon resonance (MPR) in quantum wells in magnetic field is developed. The magnetic field is assumed to be tilted at an angle θ to the perpendicular to the plane of quantum well. The resonance is due to the resonant interaction of two-dimensional conduction electrons with the longitudinal optic phonons. The electrons are assumed to be nondegenerate. The θ dependence of MPR maxima is investigated. The existence of a double resonance, i.e., two resonant peaks for each value of N (the number of resonance) and sharpness of the θ dependence is explained by the screening in conjunction with the combined role of the phonon and electon damping and variation of electron concentration in the well with magnetic field.

  • Received 16 March 2001

DOI:https://doi.org/10.1103/PhysRevB.65.115301

©2002 American Physical Society

Authors & Affiliations

V. V. Afonin1,2, V. L. Gurevich1,2, and R. Laiho1

  • 1Wihuri Physical Laboratory, Department of Physics, University of Turku, FIN-20014 Turku, Finland
  • 2Solid State Physics Division, A. F. Ioffe Institute, 194021 Saint Petersburg, Russia

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Vol. 65, Iss. 11 — 15 March 2002

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