This article is cited in 1 paper

Ferroelectricity

Dielectric properties and specific heat of the $(1-x)$PbNi$_{1/3}$Nb$_{2/3}$O$_3$–$x$PbTiO$_3$ ferroelectric ceramics

S. N. Kallaev^a, A. R. Bilalov^a, R. M. Ferzilaev^a, Z. M. Omarov^a, K. Bormanis^b, S. M. Sadykov<sup>c

a</sup> Daghestan Institute of Physics after Amirkhanov
^b Institute of Solid State Physics, Latvian University
^c Daghestan State University, Makhachkala

Abstract: The temperature dependences of the permittivity and specific heat of a mixed $(1-x)$PbNi$_{1/3}$Nb$_{2/3}$O$_3$–$x$PbTiO$_3$ system (where $x$ = 0.3, 0.4, 0.5) have been studied over a wide temperature range 290–700 K. It has been shown that the composition with $x$ = 0.3 undergoes a diffuse phase transition at $T_m\approx$ 315 K. A specific heat anomaly that is characteristic of the phase transition has been revealed at $T\approx$ 315 K in all the compositions under study.

Received: 05.03.2012

 English version: Physics of the Solid State, 2012, 54:9, 1829–1831

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