6533b7d3fe1ef96bd125fea3

RESEARCH PRODUCT

Dielectric properties of Pb(Fe1/2Ta1/2)O3ceramics over 70–300 K temperature range

K. BormanisAnna KalvaneA. M. SerezhkinA. I. Burkhanov

subject

Phase transitionMaterials scienceCondensed matter physicsGeneral Physics and AstronomyDielectricAtmospheric temperature rangePolarization (waves)Dielectric responseFerroelectricityCondensed Matter::Materials ScienceFerromagnetismvisual_artvisual_art.visual_art_mediumCeramic

description

The studies of dielectric response in ferromagnetic lead ferrotantalate Pb(Fe1/2Ta1/2)O3 are reported over a wide range of temperature under the applied bias field. The features of dielectric nonlinearity deduced from behaviour of reverse e'(E=) curves at different temperatures, including regions of ferroelectric phase transition and vicinity of the Neel point, are examined. Obtained results indicate a substantial broadening of the ferroelectric phase transition. The results are discussed with respect to effects of ferroelectric ordering in relaxor materials of such kind.

https://doi.org/10.3952/lithjphys.51416