Dielectric nonlinearity of relaxor ferroelectric ceramics at low alternating-current-drive amplitudes
Dielectric nonlinearity of relaxor ferroelectric ceramics at low alternating-current-drive amplitudes
Dielectric nonlinear response of (PbMg 1/3 Nb 2/3 O 3 ) 0.9 (PbTiO 3 ) 0.1 (0.9PMN-0.1PT) relaxor ceramics was investigated under different ac drive voltages.It was observed that: (i) the dielectric permittivity is independent on ac field amplitude at high temperatures; (ii) with increasing ac drive, the permittivity maximum …