Abstract
Abstract We have observed a new phenomena of photoinduced transformation of Raman scattering and photoluminescence spectra in RbAg 4 I 5 superionic crystal. A reversible change of the fine structure in Raman spectra at low temperature and reversible change of the concentration of luninescence centers due to irradiation of sample have been studied. Both of these processes are due to the change of local concentration of mobile silver ions in irradiated region of RbAg 4 I 5. The mechanism of interaction between nonequilibrium electrons and silver disordered ionic sublattice has been proposed. The excess concentration of electrons gives rise to diffusion flow of electrons and ions from irradiated region.
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