Analysis of the transformation of radiative recombination spectra of n-GaN after magnetic field treatments based on the queueing theories concept

Long-term changes in radiative recombination spectra of n-GaN after magnetic field treatments have been studied. It has been found out that the intensity of the radiation of donor-acceptor pairs remains unchanged over time, while the intensity of edge photoluminescence significantly decreases. These features have been explained by assuming the formation of additional donor levels and using the concepts of the queueing theory of donor-acceptor recombination.