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VOLUME 26 | ISSUE 6 | PAGE 473
Carrier mobility and photoluminescence in lead magnesium-niobate in the region of the ferroelectric phase transition
A decrease of the drift mobility (μ) of the carriers and an increase in the intensity of the photoluminescence (PL) was observed in the course of a phase transition in PbMg1/3Nb2/303 (PMN). The minimum of the temperature dependence of μ shifts towards higher temperatures with increasing electric field. The results are interpreted by resorting to a model of autolocalized "phason" states of the carriers in the region of the ferroelectric phase transition.