Comparison of band-to-band Auger processes in InGaAsP

The relation between different types of band-to-band Auger processes in InGaAsP is studied. According to a nonparabolic band model that makes use ofk⃗ · p⃗perturbation theory, the Auger effect involving the excited split-off band (CHSH process) is dominant. The Auger effect involving the excited light hole band (CHLH process) is far less than the effect of the CHSH process or the Auger effect involving the excited conduction band (CHCC process). A simple parabolic band model overestimates the CHCC process by about one order of magnitude, and the CHLH process by more than ten orders of magnitude.