The present paper reports on a study of pyroelectric and dielectric properties and the domain structure of ferroelectric ceramics of PbFe0,5Nb0,5O3 and its solid solutions with PbTiO3 and PbZrO3. Wedge-shaped domains were observed in ceramics' grains. Extremely high pyroelectric coefficient values (determined by a dynamic technique) γd∼ 15.10-4 Cm-2K-1 were obtained in PbFe0,5Nb0,5O3 ceramics doped with 1 wt. % of Li2CO3.
Ferroelectrics
Volume 247, 2000 - Issue 1
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