Abstract
We present the first magnetoluminescence study in the Voigt and Faraday configurations of mercury-containing superlattices (SL). In the Faraday configuration, the photoluminescence (PL) peak positions consist of the lowest allowed transitions between the conduction and heavy-hole valence bands after taking into account the masses as determined by measurements of the temperature-dependent SdH effect. Coulomb enhancement causes a modification of the magnetoluminescence data. The spontaneous emission intensity shows only a weak magnetic field dependence for moderate and high excitation levels. In the Voigt configuration, the PL peak positions are independent of the magnetic field due to the significantly increased masses parallel to the growth direction. The spontaneous emission intensity shows a step-like behaviour in the magnetic field for moderate excitation levels. This is attributed to changes in the spontaneous emission intensity perpendicular to the SL plane when the cyclotron diameter becomes equal to the thickness of one or two coupled wells.
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