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Relaxation of Inter-Landau-level excitations in the Quatized Hall Regime

S. Dickmann, Y. Levinson

cond-mat.mes-hallarXiv:cond-mat/9906393

Abstract

Relaxation of collective plasmon inter-Landau-level excitation is determined by emission of LO-phonons or by Auger-like processes when this emission is suppressed off the magneto-phonon resonance conditions. The decay of "one-cyclotron" magneto-plasmons with wave-vectors near the roton minimum is studied under the condition of filling ν=1. Some features of this relaxation should be helpful for the experimental detection of the magneto-rotons in a strongly correlated 2D electron gas.

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