This article is cited in 16 papers

Ferroelectricity

Dielectric relaxation in the PbFe$_{1/2}$Nb$_{1/2}$O$_3$ ceramics

A. V. Pavlenko^a, A. V. Turik^a, L. A. Reznichenko^a, L. A. Shilkina^a, G. M. Konstantinov<sup>b

a</sup> Research Institute of Physics, Southern Federal University, Rostov-on-Don
^b Southern Regional Branch, Customs Central Criminal Expert Office, Rostov-on-Don

Abstract: The temperature-frequency dependences of the real and imaginary parts of the complex permittivity $\varepsilon^*$ of the PbFe$_{1/2}$Nb$_{1/2}$O$_3$ ceramics have been studied. It has been shown that, in the paraelectric phase, the relaxation extrema are formed in the dependences. An adequate description of the experimental spectra of $\varepsilon^*$ is possible using the model of an insulator with the distribution function of the relaxation times in the shape of a rectangle.

Received: 01.03.2011

 English version: Physics of the Solid State, 2011, 53:9, 1872–1875

Bibliographic databases:

•