Temperature evolution of the dielectric response function of Pb(Fe0.95Sc0.05)2/3W1/3O3 relaxor ceramics in a wide frequency range
Electrodynamic properties of Pb(Fe0.95Sc0.05)2/3W1/3O3 solid solution belonging to A(B'B')O3 perovskite structural family have been investigated by broadband dielectric spectroscopy in a wave number range of (4 x 10 9 4 x 103) cm 1 and a temperature range of 100 600 K. The influence of low frequency relaxations on the vibrational spectrum is determined within the four parameter factorized dispersion model. Anomalies in the behavior of the dielectric response function are found near the temperature diffuse maximum of permittivity.