Manifestation of the cyclotron mode in hot-magnetoluminescence and Raman spectra in a single GaAs/AlGaAs heterojunction
Kirpichev V. E., Kukushkin I. V., Shepel' B. N., von Klitzing K. , Eberl K.
An emission line shifted from the laser line by the electron cyclotron energy was observed in a single GaAs/AlGaAs heterojunction and investigated. It was shown that, together with a Raman signal from two-dimensional electrons, a line which has similar properties and which arises as a result of the recombination of hot volume electrons and heavy holes predominates in the spectrum. This conclusion follows from analysis of the magneto-oscillations of the intensity of this line.