Magnetism and ferroelectricity

Investigation of thermal and dielectric properties of tin-doped piezoelectric ceramics based on barium titanate

O. V. Malyshkina^a, A. A. Movchikova^a, K. N. Penzov^a, R. Steinhausen^b, H. T. Langhammer^b, H. Beige<sup>b

a</sup> Tver State University
^b Martin-Luther-University, Halle-Wittenberg, Germany

Abstract: The temperature dependences of the permittivity and pyroelectric coefficient of BaTi$_{1-x}$Sn$_x$O$_3$ piezoelectric ceramics with a homogeneous composition and a tin concentration gradient have been studied. The thermal diffusion coefficient has been measured. The polarization profiles of the materials under study have been calculated by the thermal square wave method at a single frequency.

Received: 30.03.2009
Accepted: 21.04.2009

 English version: Physics of the Solid State, 2010, 52:1, 121–125

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