PHOTOLUMINESCENCE IN PBMG1 3NB2/3O3-PBIN1/2NB1/2O3 SYSTEMS/

Photoluminescence for PbMg1/3Nb2/3O3 (PMN)-PbIn1/2Nb1/2O3 (PIN) solid solutions in the temperature ranging from 35 to 295 K have been obtain ed for the first time. An abrupt photoluminescence enhancement of the system has been observed to occur at similar to 210 K, which can be at tributed to the growing and merging of dynamic polar microregions or t o the phase transformation of the material at this temperature. The PI N content has been found to affect the photoluminescence of the PMN-PI N system significantly. The photoluminescence mechanism for PMN-PIN ha s been studied.