Low-frequency dielectric relaxation (1/f noise) in relaxors of the (1 − x)PMN-(x)PZT system
The dielectric properties of relaxor ferroelectric ceramics (1 − x)PbMg1/3Nb2/3O3-(x)PbZr0.53Ti0.47O3 (PMN-PZT) have been studied at frequencies from 40 Hz to 1 MHz in the temperature range of the diffuse phase transition. It is established that the dielectric relaxation generates 1/f noise, whose spectral density depends on the relaxor composition and temperature.