Photoconductivity transients have been measured in Cd1-xMnxTe: Ga (x=0
.01) single crystals at low temperatures. The transients observed are
strongly nonexponential. Their variations with photon flux and photon
energy can be explained by a two-stage photoionization process of Ga-r
elated defects. A model in which the defect traps two electrons in its
ground state and one electron in the intermediate state accounts for
most of the features of our data.