Abstract
Magnetophonon resonance in quantum wells in a tilted magnetic fieldB is investigated. Measurements of the Hall coefficient and correspondingly of the carrierconcentration as a functions of magnetic field and temperature are simultaneouslyperformed. It is shown that the experimental data can be interpreted in terms of a greatsensitivity to the effects of varying the two dimensional carrier concentrationns in a certain concentration interval. In other words, the observed angulardependence of the MPR amplitudes is a manifestation of dependence ofns on the magnitudeof the magnetic field B. We believe that such a dependence can be relevant in general for the interpretation ofmagnetotransport in nondegenerate 2D electron gas.
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