Abstract
Using pulsed spectrometry with nanosecond time resolution, we have studied the characteristics of creation of induced defects and the relaxation of such defects in the initial stage in ionic crystals, using as examples ten alkali halide crystals with sc and fcc lattices and an MgF2 crystal in the temperature range 12.5–500 K. We present the transient absorption spectra, the relaxation kinetics for the induced defects over a broad temperature range, the dependences of the creation and relaxation on the excitation flux density. The results of our investigations are generalized in tables and, in the form of the most characteristic dependences, in figures. We describe the model developed for evolution of primary defects, taking into account the main general characteristics observed experimentally and the results of mathematical modeling based on it, which allowed us to put together a general picture for the series of processes determining the evolution of primary defects.
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