Dielectric behavior of Ba(Ti1-xZrx)O3 solid solution

A. A. Bokov (1) , Mario Maglione (2) , Annie Simon (2) , Z. -G. Ye (1)

1 [SFU.ca] - Department of Chemistry [Simon Fraser University]
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

The dielectric permittivity as a function of temperature at frequencies from 10-2 to to 105 Hz is studied and parameterized in the perovskite Ba(Ti0.675Zr0.325)O3 ceramics. The features characteristic of relaxor ferroelectrics are found, namely, the Lorenz-type temperature dependence at high-temperature slope of the real permittivity peak, the Curie-Weiss law observed at temperatures much higher than the temperature of the peak, the Vogel-Fulcher scaling of the temperature/frequency dependencies of the permittivity. However, scaling characteristics differ from those in classical complex perovskite relaxors suggesting different origin of dielectric relaxation.

Mots clés: Dielectric relaxation; Relaxor; Ferroelectrics; BaTiO3; Solid solutions

Domaines: Matériaux

A. A. Bokov, Mario Maglione, Annie Simon, Z. -G. Ye. Dielectric behavior of Ba(Ti1-xZrx)O3 solid solution. Ferroelectrics, 2006, vol. 337, p. 169-178. ⟨10.1080/00150190600716747⟩. ⟨hal-00111144⟩