MANIFESTATION OF THE CYCLOTRON MODE IN HOT-MAGNETOLUMINESCENCE AND RAMAN-SPECTRA IN A SINGLE GAAS ALGAAS HETEROJUNCTION/

An emission line shifted from the laser line by the electron cyclotron energy was observed in a single GaAs/AlGaAs heterojunction and invest igated. It was shown that, together with a Raman signal from two-dimen sional electrons, a line which has similar properties and which arises as a result of the recombination of hot volume electrons and heavy ho les predominates in the spectrum. This conclusion follows from analysi s of the magneto-oscillations of the intensity of this line. (C) 1995 American Institute of Physics.