Abstract
The electrical conductivity of the particulate magnetoelectric composite (x)Mn0.4Zn0.6Fe2O4 − (1 − x)PbZr0.53Ti0.47O3 with x = 0, 0.1, 0.2, 0.3, and 0.4 at frequencies from 2 to 50 kHz over a temperature interval of 290 − 670 K is studied. It is revealed that below the ferroelectric Curie point, the composite conductivity is frequency-dependent and is due to hopping the small-radius polarons. Above the ferroelectric Curie point, the conductivity is almost frequency-independent and is associated with the band mechanism of charge carrier transfer.
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