Magnetophonon resonance in quantum wells in tilted field. What is concealed behind its angular dependence?

Details Magnetophonon resonance in quantum wells in tilted field. What is concealed behind its angular dependence? Magnetophonon resonance in quantum wells in tilted field. What is concealed behind its angular dependence?

2002-11-21

arxiv.org/abs/cond-mat/0211471v1

Physics

Condensed Matter

Strongly Correlated Electrons

14 pages, 6 figures

Scientific paper

Magnetophonon resonance in quantum wells in a tilted magnetic field B is investigated. Measurements of the Hall coefficient and correspondingly of the carrier concentration as a functions of magnetic field and temperature are simultaneously performed. It is shown that the experimental data can be interpreted in terms of a great sensitivity of the effect to the variation of the two dimensional carrier concentration n in a certain concentration interval. In other words, the observed angular dependence of the MPR amplitudes is a manifestation of dependence of n on the magnitude of the magnetic field B.

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